I think, very generally speaking, younger people are slightly more open to kink, because of a general pornification of society and a normalisation of the lower echelons of kink. I mean, 'they' sell handcuffs in Anne bleeding summers! Alright they'll be fluffy and cheap and a bit crap, but they're still handcuffs.
20 years ago a bloke would go to a prostitute for anal, now MN has a Friday bum-sex thread. ergo, everyone thinks everyone is doing it, that you're missing out if you're not open to kink.
I've said before, organic vanilla with the best ingredients trumps chocolate chip that is full of hydrogenated fat and a bunch of e-numbers.