Just looking to see what the general rule of thumb is we're planning ds 5th birthday party and intending to invite everyone in his class, were planning to have it at a place you pay per child who attends,my partner seems to think people will just turn up with siblings of the children as well, I on the other hand wouldn't dream of taking my child's siblings if only he was invited, we're just worried we could end up paying double what we're planning to spend on the party as I'm a soft a@#£ and wouldn't have the guts to turn anyone away tyia