Might get flamed for this but I am struggling to understand everyone kicking off about who is and who isn't a key worker.
No business unless hospitality, beauty etc have been told to close. Manufacturing, construction, fast food takeaway, warehousing etc are all allowed to stay open. No business is going to close voluntarily and carry on losing money.
Someone who works in say a car manufacturing plant, no their job is not a 'essential', but they still need to go to work as they can't work from home. They can't just decide to stay off because kids are off school, so why is everyone up in arms about them sending their kids into school? They have a family to feed, of course they are going to go to work!