Ds is 14. House is about 3.5 miles from us.
No parents will be there. Party says 7pm- 3am.
Ds says he won't drink and can't have much with the medication he takes. He always refuses a sip when my brother offers it.
Ds is a really good child and generally does the right thing despite what others do.
However he's autistic and this make him vulnerable in other ways.
He was fine when I said 12.30 curfew if I let him go, was fine when I said I really didn't think it was a good idea (and said shall I text no then?) and being really good about me saying I'll think about it.
He's now just announced the older sister will be there - who's 19. Friend doesn't know if her sisters friends will be there.
Any advice? WWYD?