Tuney is partially correct here. (Unbelievably.)
No wife and kids. I don't know how you family (AL Bundy) guys do it. I respect it as it obviously keeps the human race around, but holy crap, I sure as hell am not envious of it.
Sure I have to cut the lawn and clean the house Saturdays instead of having a live in maid (wife) and landscapers (kids)... but hey, I happily do it with knowledge of the many, many, many benefits of being single.
Sanity, freedom, and new/different chicks just to name a few.
Love my niece n nephew, and friends' kids are tolerable at times, but I'm always relieved when it's time to leave.
They need to create mail order bride places that train a woman in the marital arts (cooking, cleaning, exercise, the art of being quiet, bedroom-skills, the benefits of non-monogamous relationships for the guy...) that also houses them and kids during pregnancy and while children are under 7 years old. Once the kids are over 7 and can be put to work, they can come home.
Then I may consider marriage and kids. Maybe.