The guy can still be done if it was two 15 year olds in the UK. It may not be as harsh as if he was 16, but he can still be done for it.
There are several clues to show he's way over 16. You cannot work in a place like that below 16 and most places it would be 18 (especially if working in a kitchen) you cannot start driving till 17, and you can't leave school till you're 18 (unless it's an approved apprenticeship)
Despite all of that he looks over 16 years old.

There is no crime of statutory rape in the UK. A 15 year old having sex with another 15 year old may be illegal, but it would not go to court.
I'm not defending a 19 year old who downloads child pornography though. It is only outside of the show, in the plot synopsis etc, we learn he is 19 though - watching the show it is never said, as far as I know, and he looks 15 - that's what I thought) - so maybe they should have made it clearer in the episode how old he was (unless they did and i missed it).

And? What's him not having a driving licence got to do with it? He was learning and you need to be at least 17 to learn.
A 15 year old shouldn't be watching porn or indeed find porn of kids having sex as that is pedophilia and a 15 year old is a child. What a ridiculous notion.
Even if he had sex at 15 and the girl was 15 he could be done for statutory rape.
He was no better than the other men and (as we saw) he was probably the most depraved as he got the worst ending.
Just because he looked young it doesn't make him any less of a predator. In fact he's worse.

I thought he looked younger, but various official sources say Kenny is 19.
That's interesting. I thought he was around 15 myself. He didn't even have a license, just a permit.
I felt bad for him when I watched it, even at the end. I thought "A 15 year old is probably going to watch porn of someone who is 15." I didn't look at porn until I was in my early 20's, but I preferred it of people in their early 20's.
I didn't really feel sorry for either of the older men.

I thought he looked younger, but various official sources say Kenny is 19. In the UK, where it was set, he would be guilty as a 50 year old of the crime, and put on the sex offenders register - however sentencing is up to the judge and I imagine a first offence for a 19 year old would mean he was treated as leniently as is reasonable (ignoring the other crimes for a moment). I think it was a deliberate choice to make the protagonist still young, living with his parents etc, and for the severity of the child porn he was looking at it to be unclear, so as for it not to be a black and white 'so he was a pedo? Then they should kill him anyway' type response.

He said hes not old enough to legally drive yet
No he didn't, he said: "I'm still learning, I haven't passed my test yet". In the UK you have to be at least 17 to hold a provisional licence and take driving lessons.

He didn't say he wasn't old enough to drive he said he was still learning.
He isn't a minor as he's over 16.

Did you not watch it, if you didnt why are you commenting,,,, it was clearly based in England

Was the episode supposed to be in the US? There are several cases of this happening involving 16 year olds in the US. Here's just one example: http://atlantadailyworld.com/2015/09/09/high-school-teen-faces-10-years-in-prison-for-sexting-female-classmate/

Working in the fast food place means he's at least 16. 16 is our legal age.
At first I was like "a teenage boy waving a wank to internet porn, what's the big deal about that?" I wonder how the big paedophile new he was talking to another of his kind? Maybe in a takes one to know one kind of way.

A minor can get in legal trouble for sending sexts from a minor, for example if a 16 year old girl takes naked pics and sends them to her 16 year old boyfriend she can get in trouble for distributing child pornography and he can get in trouble for viewing it. I think the main character would get in even more trouble then the example above because it is implied that he was looking at much younger minors.

Well what I am wondering is what are the laws here? He is clearly underaged. He said hes not old enough to legally drive yet, he just took the test or whatever. So if hes underage, looking at underage porn, how does the law work there? Is it illegal for minors to look at other naked minors?

well their parents are their legal guardians so they are deciding their consent and they should be aware of consequences of sharing children photos online, it should not be up to anyone else to decide this

what's wrong with naked children in Facebook?
They have not consented to be seen, possibly in a sexual light, by loads of people.
I'm against the sharing of any children on FB too, though i don't report it because its not against FB's rules. But i do think those kids haven't consented to have their whole lives shared on the internet and i am very glad my childhood was not broadcast to various friends, relatives and strangers.

what's wrong with naked children in Facebook? i guess you report also breastfeeding mothers
i am glad i live in Europe and certainly not in place you live where people are obsessed with pedophilia and anything innocent is blown out of proportions
the reason i don't put photos of my child to Facebook is because it deserves privacy, but it has nothing to do with being naked or not

What if they were just drawings of children? What if they are a collection of images taken from what some idiots put up of their own children half-naked on the beach or in the bath on Facebook (which I always report). Is a child suffering then? (Not that it's ok to wank over them).
My answer to child porn is that every pedophile that gets caught, they should take their child photos and photoshop them doing all the sex stuff. Then other pedos looking for child porn would find that. I have written to the government with my idea but they have not replied yet.

While he might have an innate sexual fondness for children that one could argue he was born with and has no control over, what you refer to as a sexual proclivity for children, this 100% does not release him from being responsible for his choice to act upon it. He was looking at pictures of children. Where did those pictures come from? What children are in the pictures, and why were they posted? There are sick, twisted people who cater to pedophiles and physically, emotionally, psychologically harm children in order to supply pedophiles just like Kenny. Kenny's desire to look at pictures of children absolutely harms children. He is absolutely responsible for his actions which directly causes children to be harmed. He doesn't have to touch a child to cause harm. That doesn't mean I didn't sympathize with his plight; he was a sympathetic character- he was meant to be, but he did harm children, and I expect they were young children as was alluded to when he interacted with the young girl in the restaurant, and by the way his mom was freaking out.

Quite shigui.

Child pornography should not be legalised. I think people who advocate for it are just pedophiles themselves and want easy access.
Death lies dormant in each of us and will bloom in time. Odd Thomas

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Chemical castration doesn't always work for males either. A lot of them have reported still having the urges despite the fact that they can't get aroused. The thing is that it is possible, POSSIBLE, to treat people who are pedophiles and have never offended. The PROBLEM is that more than likely they will eventually offend because the material only holds them for so long. Though it's interesting you brought up female pedophiles. This show seemed to completely ignore the fact that any person other than a man could be a pervert or unfaithful or whatever which annoyed me.

you can still take hormones to negate effects of chemical castration

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