My aunt and uncle have 3 children, two of whom are over 18. The other one will be 16 this June. All three kids live at home. The two older kids will, of course, get their own invites. The 16 year old is the youngest of all of the cousins.
I know that etiquette-wise, we should put the youngest on her parents' invitation, but I don't want her to feel badly that she doesn't get her own invite. Would it be weird to give a 16 year old their own invitation?