Till this date I have not felt it's need and may not be feeling it also in future.It may be because of my ideology. You may be living in America/Europe/Australia ,and your idea may be something different. Does sex have to anything with age?other than in kids?
A lot of people have lead single lives.....nothing wrong......if you are not inclined that way.....as long as you stay celibate.
is that your intention?