I just wanted to share this because I think it's interesting. My son is 16, autistic and very bright. We've noticed a really interesting phenomenon with him that he very often uses 'they' when he's talking about friends, especially new friends that he doesn't know that well. He uses 'they' really naturally (whereas I find it almost impossible to use if I know the sex of someone). He'll come home and say 'I saw Alice again today. They've got a new skateboard. They got the bus to the shop at the weekend and then they went to the park to have a go on their new board. I wish I'd seen them!' We've even started pointing it out to my son and teasing him about it and he just gets mildly irritated like it's irrelevant. It's nothing to do with gender ideology - the people involved never identify as trans or non binary and my son is not into gender at all. He doesn't believe people can change sex and just thinks it's all stupid - he's far from a tactful child, tbh! It happens very frequently though. I don't really have a point I just think it's interesting that autism is so over-represented in the trans community and that even my kid who is not interested in gender has some kind of brain quirk that's not quite computing gender in a normal way somehow.