My child had their prom last week. It’s quite a small school (private) & one of the parents kindly offered to host an after-prom party, via email.
How lovely I thought, then further along mentioned a cost of £10 per head. This was to cover drinks & food.
The prom venue was already providing a buffet, so it was changed to nibbles & drinks (apparently alcoholic ones at that - this is for year 11) and reduced the cost to £5.
Surely if you’re hosting, you do just that or ask parents to provide drinks they’re happy for their child drink? 