There were some interesting definitions given on the radio yesterday, I cannot remember by who.
MODEL, Just that , models clothes of all kinds
ESCORT, accompanies a man and may offer 'other ' services
HOSTESS is just that, offers company at large events like this, nothing else, look, but don't touch.
I suspect many of the young girls, mainly students doing this for some extra cash didn't look into what was really involved at an event like this, just saw a chance to make some extra money in the safety of large numbers, some probably never realised events like this existed in this modern #Metoo# age.
Girls, late teens, early 20s, still a bit wet behind the ears, up for a laugh, in a group just didn't realise just quite what they were letting themselves in for. I suspect that is how I would have reacted at their age. Done it for a giggle, not thought it through and then be horrified by what the job actually entailed.