I am mostly
at the idea of a 'Princess day' and good on that girl for subverting it, whatever her intentions. (And even if the idea came from a parent, she must have at least bought into it.)
Seriously. I like plenty of princess stuff. 4yo DS bloody loves it and would be thrilled by a princess day. But I don't get wtf it's all about, I do think institutionalising it is massively regressive, and I think hurrah on the child/family who made a wtf response.
None of which means I think there's anything wrong with the other girls/children or their parents. It's ok to like different things. It's ok to like the crap you're sold as being 'for you', and it's ok to challenge that same crap, and it doesn't mean you're at war with each other.