FH and I have decided to have an adult reception, and I'm being very firm about this because if we invite one - we invite all and that adds 30 people, and to be honest I just don't want kids.
Now, the golden exception are the kids in the wedding - flower girl, ring barer, and Jr bridesmaid - they're all siblings and will be at the reception.
The only pushback is FH cousin who will be 12-13 when we get married, and since he has such a small family and she is his only non-adult family member, its very important to his family that she is invited too.
Now our way of justifying it is to give her a role so that she is "part of the wedding". But what can she do? FH suggested guestbook attendant? We aren't doing programs so she can't hand them out, and my brothers will be our ushers.
I don't necessarily want to include her in the BP, and I honestly don't think she could handle standing up there in front of everyone.