answer:Well, many are not. I’ll try to answer anyways though. Some are scared of committing to the wrong person, or of committing and then meeting someone “better.” Usually when you meet a guy who is scared/not-interested in commitment it means they’re not really all that into you. Id est, it may just be you honey. It may be a genetic thing or it may be a socialized issue. Also, you may want to ask a question of equal essentialism: Why are women so interested in commitment? Many are not, but of the ones who are, why? The answer you yourself give may be heuristic of the “opposite” male temperament. Commitment may have something to do with children: Maternal instinct vs Male “sewing of wild oats.” However these are stereotypes, and it is best that we avoid asking ourselves questions like these (ones that engage essentialism). Context may also help for such future questions.