A major reason for the unwillingness of young people to have sex is that men expect their sex to mimic depictions in porn.

I also think there is laziness by men where there is the expectation that women accept men they way they are whilst men demand that women meet their expectations. Such a mind set might have worked 40 years ago but today women aren't settling for guys who do the bare minimum and men, who have been raised with a warped sense of entitlement, can't seem to wrap their mind around why no one wants to touch them with a 40 foot barge pole. If your only interests are getting shit faced with mates, watching football and never helping around the home then don't be surprised that any relationship you have spontaneously combusts or never gets off the ground. Long story short, men need to lift their game and become more than just a walking stereotype of cliches.