I've been playing bass for about 12 years and guitar for about 9. Growing up, I was able to play in my brother's "jazz rock" band. I think I was 13 the first time I was on stage. There is something about the bass, man....it is just so fucking groovy and cool. There are so many funky tones you can get out of a bass that it will make your soul scream.
Transitioning into high school, I knew playing the guitar would get me a lot more opportunities to meet fellow musicians and play with them since I knew a few bass players and drummers. I was able to gig around Florida for my later high school and early college years where I had some of the greatest times of my life. Met most of my friends and girlfriend throughout that period.
Looking back, I wish I did more with it after my band days...maybe be a studio musician or a teacher or something. Music is just so special to me and it is the one great things our world still has in common. I beg you! Play anything! Playing an instrument you are really passionate about can really do a lot for you.
/rambling over
edit: But if I could do it all over, I'd probably play piano...I envy piano talent