For my son's first birthday, I am booking a play session at a local play cafe for him and 4 other babies/kids plus parents (mass booking). The owner agreed that I could bring in a cake and some decorations (football themed so just a tablecloth, some bunting, small banner and baby is wearing a football jersey). Of course i agreed we would buy food but would i be expected to buy a full meal for each parent. Not about money, just interested in what the social norm is as its the first time i am hosting a kids party.
I had a 100 day party for him (chinese cultural tradition) and all the guests had a filling mral . That was very different as we held it at a local members club (had a great cheap bar with unbeatable prices for London where guests bought their beers), ordered a fancy cake and my husband made all the food (sandwiches and i ordered some bits like matcha cake and hummus with veggies, crisps and fruit ) plus dyed red eggs. The decorations were a bit sad as i wasnt able to do much with a 3 month old. Still the venue was ok looking (looks like a lovely old pub) and i think everyone had a good time.
The venue was a bit big for the number of guests plus the food prep was a bit stressful for dh (who made tons of sandwiches with different fillings) so i wanted a simpler option this time.