Girls v mixed birthday parties

[NoGoodOptions]

I'm trying to organise a birthday party for my soon-to-be 6yo and her friend. She's quite girly, and the mum I'm splitting the party with would like to have girls-only to keep numbers and cost down. I think this makes sense. My husband and I are both feminists and he's uncomfortable about dividing the class between girls and boys. He thinks the division is arbitrary (it is) and not a model for how he'd like society to be. We don't have all the money in the world, so can't rent a hall, etc. to be able to host 30 kids. The other mum at the moment is offering to host in her house. Beyond the obvious and practical, any arguments I can convince him with? I'm really quite annoyed!

At 6 she's old enough to tell you who her friends are, you really don't need to invite the whole class!

@Autumncoming

At 6 she's old enough to tell you who her friends are, you really don't need to invite the whole class!

But if this includes boys, even in another class, they shouldn't be excluded just because they are boys.

A six year old is typically capable of telling you who they want at a party, plus you should be used to hearing their friends names.

My son invited a mix of school friends and rugby tots friends to his party, we had three boys (including him) and five girls. If I had insisted on a boys only party he either would have had two friends at his party, or two friends plus ten boys he doesn’t play with at school.