Myfatheristheking-like id told Telstar-bring your kids, neighbours, in laws, whoever you can round up lol.
Just feels so rude, it leaves the person planning not having any idea how many to prepare for... don’t even get me started on the boxes of krispy Kremes i pre ordered, or the celebration cake... I’m fairly certain that I can’t force the children to eat 6 doughnuts then cake each.🙃
I think I would buy things I could bring out if need be. Keep pizza in the freezer. Have crisps in the cupboard. Salad in the fridge. Then just see how many arrive. I find a lot of people will text the day/night before. It's because they are either racing around, haven't seen the invite (in the bottom of a school bag), or gone on holiday for half term, or their dc can't decide whether to go to football practice or come to the party. It's rarely about you.
We have nothing going on here for halloween. I'd have bitten your hand off.
It’s very rude not to reply.... However to my shame I have done this once or twice simply through a combination of disorganisation and busyness, rather than anything deliberate, and have then felt mortified when i realised. If you still want them to come, I’d contact them to check - a quick text or msg.