It's up to the parents, but most people would say no, that it's not really a good game for pre-teens (or even early teens).
Yes if you are good enough
By the rating (Mature), no ten year olds could buy or play GTA IV.
yes ten year olds can play with dolls even 11 year olds can
well that depends if they are mature or not
I believe it is a good thing. Athletes tend to learn more when they play against more challenging players
Kids should be able to play with whatever they enjoy so if a twelve year old enjoys playing Barbiee them yes, they should
If they are mature enough and have good grades in school
4 year olds should not be playing video games where people beat each other up.
I don't see why not. Of course it's up to the parent to make the final decision. I do believe though that 13 year olds should be allowed to play it, assuming they've been around gory games before
No
Yes, but they shouldn't (it is rated M, which is 17+)
yes they should be able to play gta5because it is not that violence