This is a good thing. Your generation (the writer) is incredibly confused. Sex does not equal love or a meaningful relationship in itself and is quite a multiplier of loneliness when not united with commitment.
I am a firm proponent of people remaining virgins until they are married. It removes about 95% of the problems in that area of your life.
But people should be interested in sex.
And a good number of people are not. That is not healthy.
We are going to end up like Japan, with a bunch of people who drop out entirely, others who are so deep into fantasy that they can't handle reality and a few who get into some truly unhealthy stuff.
The birth rate will drop and drop and drop some more.
That is extinction level stuff.
Yes and no. They not having sex, not because they're in happy committed relationships waiting until marriage, but because they have no romantic relationships (and often not much in terms of same-sex friends) at all. That's not a recipe for anything good longterm.