WIBU to get the school cardigan for DS?

[SwoopRoar]

Hello,

DS is going into Reception and finds a jumper really hard to remove. I'm sure a teacher would help him, but it's definitely something that gets him in a bit of a fluster.

They have a cardigan option (they are with school trends, so get the school logo put on) and it hasn't got any silly frills, etc.

He often wears cardigans with shirts, etc. so it looks very unisex to me and in his little shorts, I'm sure he'd look adorable!

I'm just wondering if IWBU? Would children laugh, etc.? It would be so much more suitable. I've added a pic to show you what it's like.

Is there a uniform list on the school website which might hint which sex will probably be wearing a cardi?
The cardi looks unisex but it's hard to know what's the norm at the school as it clearly varies,
I don't think he'll be laughed at but I wouldn't be surprised if someone with an older sibling said matter of factly "Cardis are for girls." Or "Are you a girl?"

At my dd school uniform policy is girls cardigan, boys jumpers. In y3 girls are allowed jumpers as well as cardigans.

Our High School uniform has a cardigan option for boys, it's actually pretty popular, They wear it with their skin tight trousers and smart shoes.