The problem is most people are told the opposite.
In my early 20’s, I was told to “work on the career now, get a wife later”. I did, and ended up realizing I didn’t want the perks of the career without the family.
I married my bride, have two great kids, but know that I am not in a position to achieve what I originally wanted from my career. I can’t and be a good father.
When one looks at how much governments and universities and bankers profit from today's cultural bias toward delayed marriages, however, one understands why the propaganda is so intense. :)