> What I've seen with my kids (under 10) is when they get an hour of phone or tablet, after they have to give it up again, they become very aggressive and behav

> What I've seen with my kids (under 10) is when they get an hour of phone or tablet, after they have to give it up again, they become very aggressive and behave in a manner which is comparable to someone with a chemical addiction This has nothing to do with addiction and everything to do with parental education. You will get the same kind of reaction if you take away a toy that a child is currently having fun with, regardless of whether it's a tablet or not (I bet our parents were having similar concerns decades ago when they turned off the TV on us). A simple talk such as "You can play with it again tomorrow but if you act like this again when I take it away, they you will never get to play with it again" did wonder with my kids.