100+ hours of game time on those alone I imagine. Wrong IMO.
If that was over (say) 3 months, it’s about an hour a day. If you allowed a few hours over a weekend, it could be even less during the week.
Kids don’t spend every waking hour outside doing wholesome healthy things, before coming in when it gets dark and doing their homework then reading educational books.
Worse than spending that time indoors building something with Lego? Or watching cartoons? Or making things from loom bands? Playing games doesn’t have to be at the expense of everything else.