When I was about 12, I moved up to using my dad's 10-speed. When I was 13, I got my own 10-speed. Wore it out by the time I was 19. .... got away from riding for awhile.
When I was older, I got a 2001 Cannondale H400 CAAD3 hybrid. Put about 5k miles on it, and migrated from the stock 38mm tires to some 25mm slicks. That planted the seed for me, that I really needed a road bike again. Got my Synapse in 2008.