If you never date anyone, how can you know who is the right one for you?
I was heavily involved with sports, and this allowed me to have something other than a dating life to enjoy myself.
This will only work if you do not allow the relationship to enter into one too similar to marriage.
Premarital sex, obsessive discussions about marriage, or too much time spent together can all take the relationship to a level of intimacy that is inappropriate for dating.
Throughout the years I dated Stacey, I don't recall ever telling her I loved her, and she didn't tell me either.
I did not allow my dating life to get so deep that the potential eventual break up would be horrendous.