Sex is the intercourse between man and a woman which meant to reproduce likeness.
But the contemporary generation take sex as an intoxicating flashly enjoyment that causes sin which is against God.
Yes men can live without Sex but how possible is that because men love sex to the core that most of them can't even control their libido.
So, how can one controls his huge?
Can man live without sex? Yes obviously! Some people have proven it, especially some saints, monks, etc. But can a man live without orgasm? I don't think so. A man no matter how much he wants to channel his energy elsewhere, it always lives as a social animal where it interacts every day with the opposite gender and same gender, you can call it evolution or whatever but we are bound to have such feelings where we want to come close to another person. If we restrain ourselves from meeting the other person still whenever we will be alone we won't be able to control that urge. This especially becomes impossible for someone who has experienced the oxytocin rush for once.