I agree. I'm a parent of 3 kids, the oldest of whom is 11. I picked up GTA V the day after it released and I had my two year old with me. That does NOT mean that I bought it for him or any of my kids to play. Matter of fact, I don't even play it while any of them are in the same room.
What I'm trying to say is when someone walks into a store with their kid in tow it does not mean that the kid is going to get to play whatever is bought. Yes, even if the kid is the one that brings the game to the parent's attention and begs to play it. I realize that some parents have yet to realize that they can say no to their kid.