DH has a significant birthday this year which we've booked to go away for with our 4DC. Since we've said we'll be going away DD (15) has been adamant she won't be coming with us. She'd rather spend the week at her grandparents even though we normally have to drag her there!
DH is hurt that DD doesn't want to spend time with him on his birthday but we know we can't force her to come with us.
How old were your DC when they stopped joining you on family holidays?