Telling family about your diagnosis

Hello all,

I got my autism diagnosis 2 months ago, aged 50. I've told my manager at work, but am unsure about telling my family - specifically my children. They are 18 and 22, and fantastic. I've been a single parent for 18 years and we're very close. Part of me would like to tell them as they'd be very accepting, and it might help explain why we've never been on holiday, or eaten in a restaurant, or all sorts of things. But I worry it's inappropriate as it's my problem to deal with.

Has anyone been in a similar situation and has any advice? Thank you very much.