Smother agree about the drinking. My 16 year old has been ditched by her 'best friends' this week because she said she didn't want to drink tomorrow night (last day of school). Apparently she's boring and immature because she doesn't want to get pissed in a field. The pressure on her is ridiculous but fortunately she's got a good head on her shoulders and isn't bowing to her friends demands.
If drinking is the only way you can be fun then there's a problem. Yes it can make people relax and lower their guard, but more often than not it turns people into twats. Really, no one should need alcohol to make themselves fun.
This lot in there should have enough personality to be entertaining without getting hammered. It wouldn't hurt to have a 'party night' or something once a week, but it shouldn't be needed. They've applied to go on this show and shouldn't be there if they've not got a personality. And I don't mean they have to be loud, outgoing and gregarious, but intelligent, witty and up for a laugh would be somewhere to begin.