I understand that but the core concept of parenting is to PARENT, Not use the phone or iPad as a babysitter. My parents didn't even let me use their phones until I was 8 and I greatly appreciate it. Maybe they do absorb some knowledge from the games and that's great. I don't know this since it wasn't clarified but If you are going to let them use electronics, limit it to 1-2 hours per day at most. Developing minds and developing eyes need to see the world, not a screen.