I think this is the way. Not control, but just make it simpler for parents to handle their childrens devices. You dont have to make everyone share their age, you just make it so that parents can in a simpler way choose what the children should be able to access. Make it easy to do right, dont add more control. Its kind of the old anti-piracy copyprotections. The pirates always cracked it, and in the end, the ones who got to sit there trying to figure out what is the word in the manual is the user who actually paid for the game. So making it worse for the ones who paid, and better for the cracked version. So, make it simple.