The unchallenged assumption is that we need to pass on our genes, you know, because there aren't enough people in the world. People that I've talked to who were in forced non-fap zones, like jail, where you have no privacy because of partially obscured or unobscured toilets and showers, don't have such a positive opinion of it. Sexual release reduces stress. The inability to achieve sexual release seems to exacerbate the stress of being in jail. People become obsessed with sexual stimuli. Not being able to see females except on TV makes them obsess over every female they see. I watched one of those prison shows and they described how the inmates jerked off to any little thing, like the top of a female guard's head. That doesn't seem healthy to me. By exposing yourself to sexual stimuli, like porn, you are desensitizing yourself to it, and making yourself more functional as a human being.