So I have a birthday party for my DS booked- small soft play centre. However I have messaged other parents early with invites as I want to confirm numbers in as it’s in school holidays. So far only 4 people have said they can come (invited 29 - whole class) about 10 so far are away and rest no response yet. I’m worried it’s gonna be a crap party for him If only a few kids show up!! Tempted to cancel - what should I do?!!