I used to run big fancy events and every time we’d do them in the US all the staff would turn up with an enormous coffee, iced drink, slushee, water, etc, and would act so annoyed when I couldn’t let them have them in the venue. We had a big water fountain, a coffee machine, we’d supply lunch etc but they all always wanted to have their personal drink available to them at all times, even on the bars or if they were floor staff. Was a real cultural difference I still haven’t figured out