meningitis. how do you spell it? don't know but one way you can put yourself at risk is by random and multiple snogging.
kissing people isn't the end of the world (unless you die from it, obv). kissing a few boys/girls/both at a party should be ok for people of fifteen. long, sleazy, gropey hours in corners - no.
alcohol at fifteen, at home? in a party supervised by adults? well, if drinking alcohol is part of your culture, you have to learn how to do it. i'd provide low-alcohol drinks and make them all lock their coats and bags in one room so that they couldn't get to the half-bottles of vodka they brought with them. providing bottles of spirits for an underage,unsupervised group in a hall is probably illegal, and if not, it should be.
morality today, standards, setting a good example? yes, there are issues.
saw a young teenage girl on the bus yesterday - skin tight pale pink trousers put everything on show - not safe. but she was with her mum - who was bleached blonde with a lycra mini skirt and leather jacket. might have been a prostitute, might have just thought that was a fun way to dress. no way to tell without knowing them. that's what the daughter has as a role model for style - but they were out together, they might be 100% respectable and caring, just dress in a way that i wouldn't want for me or a child of mine.
i didn't do the partying thing either as a teenager or as a young adult. i got married, divorced and still didn't.
my daughter didn't do the partying thing - she got married - they're still together. i like our way but apparently, it wouldn't suit everyone.