Which, nowdays, one is encouraged to delay as long as possible (not just by women being told they don't need a man, but by society at large saying "not yet").
Get a degree. Get another degree. Get a job. Nurture a career. Wait until you're thirtysomething. Get a home. Buy. Travel. More. ... by then, the poor schlep is almost old enough to be a grandfather (pushing that maybe, but still!).
Moving into my forties, I'm realizing that husband-and-father IS what, deep down, most males need be for fulfillment. Following society's "not yet" imperative does not satisfy this, leaving him to fill time with undirected amusements and urges - to wit, prolonged adolescence. Yes, he should wait long enough to "discover himself", establish independence, and find Miss Right (not hyphenated with -Now), but he should do so with husband-and-father as a goal, not something drifted into via/despite time-filling amusements & indulgences.
...and to achieve this at a suitable age (about 25, given that he really should get a degree, job, and real estate), he needs to know that there is someone else out there waiting for him to achieve such readiness (instead of merely prolonging teenhood) - lest she give up on finding him and go to another who is ready.
I agree.