Doing something like that would have about as much meaning as printing up a business card that says, "I am the President of the United States of America," carrying it around with you, and expecting people to believe it.
Being able to pull the sword out is what has the meaning, not doing it by some other means.
Why aren't cookies called bakies?

It's symbolic and not literal. Just like the quest for the holy grail is not literally looking around for a cup.

That's a good question. Toying around with reasons, maybe they felt it would not be "okay" to do because it would be a kind of cheating and they were concerned they'd cursed by supernatural forces.

I don't know that. It was not shown.

Use the Force.

How do you know someone didn't try that and fail?
Don't you lay a hand on my Sasquatch!