36 here. single, got my own place in NYC, plenty of disposable income and lots of freedom...
had a gf long ago but the single life (for the most part) has been good. it's a slippery slope though as you get older. on one hand, you become wiser/richer. on the other hand, you get older/weaker. i love smashing. there's no better feeling than new p*ssy and nothing strokes the male ego more than hedonistic sex. that's just the way men are wired; to probe and plant the seed.
with that being said...
looks fade, money is never guaranteed, but legacy lives on. legacy is family and blood is blood. having a companion by your side and raising children is a requisite for humanity. being a family man is the most selfless act a man can do; working your ass off, sacrificing your time, and devoting yourself to ONE woman in hopes of providing a decent life to your son/daughter. that is as alpha as it gets.
from a biological perspective, human beings are no different than animals. men and women are here to procreate, bottom line. if all of us had the single mentality to simply just, "enjoy life and never have kids" ... we would all be extinct.