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?
Male and Females are biologically attracted to each other and this attraction leads to sexual desire. Its naturally passed through generations but its not essential for a persons survival. All of us lead our life for a certain period of time without any sex and still survive. So i do not see any problem if someone doesn't wants to have any sexual life. Its up to every individual.