My oldest g'son had a few "iffy" moments during the first 2/3 weeks of lockdown. Little wonder, considering the huge change in lifestyle. However, once he put his mind to it, he settled down to work hard at college stuff. His Mum encouraged him to get out and about every day, either for a walk or on his bike. He's also helped to do a lot of work in the garden, tidy the shed and the loft, etc.
I'm most proud, however, of how concerned he's been with regards to the health and well-being of myself and his other Gran. We're both self-isolating (age and health conditions). He's gone for shopping, picked up meds, etc. for us both.
My two youngest g'children have been "attending" school throughout this crisis as both their parents are key workers. They haven't done much organised work, but have been kept active, mostly outside (huge school grounds with lots of play equipment, etc.) on good weather days. Both appear to have been happy with these arrangements.