Invitations went out two weeks ago for a joint party for DD 6 turning 7 and DS 4 turning 5 (both have birthday in May). Never had a party before, DD Is beyond excited. Venue capacity is 60 with no wriggle room as they're the venue/hosts/entertainment and they do a head check. No one has rsvp'd for DD (DS has six guests so far) out of 60 invites (30 each). It's a bank holiday plus someone else in her class is having a party the same day. So no one has said they're coming for DD, three have said they can't due to other party. Dd does dance club Mondays which only has one girl from her year in it (most go to other schools). DH said to invite all 30 of them and just cancel individuals if we do end up going over capacity, but I'd feel awful doing that, but as it stands DD has no one coming, I can't even begin to imagine how devastated she'd be. Would I be unreasonable to risk going over capacity and then having to cancel individuals? How many people do normally RSVP out of 30 in your experience?