[user104658]

Under 10's really need the break to be honest, they're all exhausted by the end of the year and need time to recharge. Outdoor play is essential though, they need that time to build themselves up physically with activity and plenty of sun (hopefully, although you do still get UV even when it's grey!) before going back to another year sat at a desk.

I guess we're lucky as we live somewhere quiet with plenty of young kids so plenty of outdoor play in summer. I can see why it's an issue for "city kids" who are basically stuck indoors with tech unless it's an actual planned activity... That must be boring as ****.