If the reason they're keeping schools open is because they don't want essential workers e.g. NHS staff to struggle to get to work, why not keep school open only for those workers and send everyone else home?
Surely that'd save lives as children are little potential superspreaders, running about!
And reading the comments on DD's class whatsapp, looks like there's going to be loads of kids with coronavirus in schools as many parents aren't clear on whether their DC's symptoms count and haven't yet got the message that they need to keep the whole family off if one is ill.