Mobile phones and Games Consoles, yeah that's educational.
I guess if your kid is using Assassin's Creed for history class it's no surprise their falling behind!
Video games are not entirely accurate....
Mobile will probably be mobile games or facebook.. so again not educational
Laptops and Tablets, fair enough you can do some work on those.
Youtube? Well sometimes yes if you only watch educational feeds and not say music videos.
But alas, I cannot judge I spent my teenage years doing coding and looking at, eh, stuff.
Technology can be educational if used correctly. But not for example video games consoles!