I am 23 and I have been in two relationships my whole life.
One GF all through highschool,
and my current GF for the last three years.
Met her in college.
She's 28.
Life with a women you love is great.
Sure you can't do some things that single men can,
and you always have to think as a couple,
but the benefits far, far out-weigh anything that could be considered a negative.