Video games shouldn't have age restrictions. They should say ask parents permission. Because most age restrictions aren't bothered with. Im 12 and i play GTA 5. I don't give a crap only if my mom or dad lets me. Because they understand i know the difference between video games and reality. I get soooo mad when people s "Your too young to play this" I say "Im allowed too" And it never ends.
Initiatives to place age restrictions on products (more specifically games and other media) were started for more than one reason. Firstly, there is the reason that you lightly touched upon. Y'know, the whole (protecting younger peoples from being exposed to sensitive material before they're deemed ready.) But the main reason is to protect corporate interest. You see, if I were a big game-designer and distributor, and I made a game with intense language and multiple scenes of hardcore nudity and there were no laws governing who that game could be sold to, I would be vulnerable. Purely because of the fact that if a younger person, (for argument's sake, let's say this person is 10 years of age), came in and bought my game, took it home and played it and ended up emotionally traumatised, I'd be liable for that. So, by having an agency to 'categorise' if you will the age group the game is appropriate for and restrict anyone outside of that demographic from buying it, I am protected. That's because I have made it clear that it is not 'suitable', and I've only made it possible for that demographic to buy it. If, for whatever reason someone younger than the age suggested plays it, I can't then be responsible - and any emotional damage they suffer is pawned off onto whoever supplied the minor with the material.