It needs to happen. It seems pretty clear to me that schools are the major spreader. We've had 3 lockdowns counting this one.
First one: absolutely everything shut. Cases dropped.
Second one: most things shut, no large gatherings but we had dentists, takeaways etc open and schools open. Cases continued to rise alarmingly quickly.
Third one: most things shut, no large gatherings, takeaways open, dentists etc open but schools shut. Cases dropping.
To me that says schools are the major players here. Thing is, there is no practical way to make them covid safe.
Primary age aren't so bad I'm finding. Its secondary that are the biggest ball ache. Like fuck do they study independently.
Get them to read some books and write a book report or a story and check their spelling and grammar. Do some maths worksheets, maybe check out the documentary and geographic channels for some interesting things about history or space. At one point I resorted to getting him to write a how to guide to minecraft. And I counted that as a win. 
And yes I have attempted to engage a 7 year old in a documentary and I realise its easier said than done (I had it on in the same room and he watched the explosions) but we'll just have to do what we can and accept that education is going to look a bit different and be somewhat patchy this year. They'll catch up. They have 13 years in formal education. They've missed less than 1 so far.