To expect my son to still be allowed to do PE?

[KarenM262]

Since covid school have made us send our children in PE kit once a week anyway I was supposed to send my 6 year son today and for some reason I completely forgot and sent him in his uniform, it wasn't until I got a text from school telling me off that I even realised. Anyway I've no excuse I should have sent him but he has come home telling me he wasn't allowed to join in and had to sit and do writing instead. It was indoor PE and he wears trainers so can't really see why he couldn't have done it in his uniform? AIBU?

Every one of the possible reasons / justifications on here for the school doing this are ridiculous. He was wearing trainers. Kids run jump play football etc at break in their uniforms on non-PE days. How is this any different? Plus making him write (thus using writing as a punishment) is really problematic too.
I'm not one of "those" parents at all but in this situation the school would be getting a very stern email from me!

At our school kids often forget their pe kit and just do it in their normal uniform. It isn’t a big deal for our school, don’t see why yours is being weird about it. Can see might be a bit harder if is a girl in a skirt but that isn’t your situation

My son’s pe trainers and pe trousers are the exact same pieces of clothing as his normal school shoes and normal uniform trousers, just in a different colour (the m&s girls uniform department does amazing grey knitted trousers that work great for boys by the way!)

The hygiene argument is a joke at primary age. Half the lessons consist of throwing a tennis ball to each other, they rarely break a sweat!