I don't feel that every thing is being dove, and done well enough to ensure safety.
Unfortunately, Dr Jenny Harries seemed to think, no ppe was needed because All dc will be sitting in rows facing forward. So her models showed it was safe and there was little evidence that dc spread covid.
I don't know why the unions are not lasering in on things like this.
Going back was built on sand. Test and trace, failed, utter nonsense from the likes of jenny harries... Etc etc ect.
I'd simply like to see across board consensus.
1st, minimum 2, 3 weekend lock down for schools over half term. Opportunity pissed in the wind. Then natinal lock down.
Schools go back with regulation ventilation, no ifs or buts. Mandatory windows and doors open, or at hourly intervals for 10 mins each time.
Remove fines, any dp complain of cold let them keep their dc at home.
Try and get perspex screens up.
Drum into older dc to sd. They don't at all.
Have a public information video, compulsory to show about mask, air Bourne virus etc.
Make teachers aware and responsible for each others safety. If anyone in the staff room feels the cold, encourage, personal fan heaters, extra layers, even hot water bottles, because someone feeling cold, does not trump, someone's right to breath fresh air. 
Possibly, blended learning for secondary students. 3 days in, 2 days working from home.
Primary absolutely drum into dp, no sharing of snacks and food after school!make them wait ten minutes before handing out bloody food!!