A good idea, but I think they have to go a few steps further: you may not play a dwarf character unless you are really small, you may not impersonate a wizard unless you are one in real life, and you may not use any kind of weapon in game if you are not eligible to use one in the country you live in.

I mean, can you imagine how rediculous it would be, were you to act out a mere *fantasy* in a game? Pretending to be something you are not really? There mere thought of it...!