I can see this will be the Issue of the Summer.
Whilst I've sorted them out some structured activity days (sporting hobby) and swaps with friends, the days are long and DC would like to be on a device A LOT. Apparently, I'm extremely strict and EVERYONE else gets far more than them.
So, what do others have and how do you stop your DC going on it all the time? They're not very good at entertaining themselves on their own, so it's all a bit laborious.