When I was in my early to mid 20s, all I wanted was to get married. I wasn't worried about a bio clock or anything, because I never, ever really felt ready or mature enough to become a parent. People droning on and on about how "it'll happen when it's meant to be" annoyed me to no end.
I ended up marrying later (I in my 30s and Mr. RDHIF3* in his 40s--first marriage for him, too), and, in retrospect, I'm so grateful it worked out the way it did. I grew to cherish my independence and cultivated my education, career, and (relative) financial security--things that, while not essential to happiness, are arguably still important IMO.
And about those annoying people? I was a million times more annoyed when, in my case, life proved them right. Platitudes--ugh! LOL!
* Mr. Right-Despite-His-Irksome-F'n-Flyers-Fanaticism