Up to the age of 16 I had:
Tri-ang solid tyred / fixed gear / rod braked kids bike. Learned to ride down the garden path on that one.
Mk 1 Tomahawk. Outgrew that one.
Mk 1 Chopper. It was always slipping out of gear, ouch. I broke it by riding it three-up.
Raleigh twenty (my mum's). No money to replace the Chopper, so it was this or nothing. Metallic brown with a white vinyl seat, not cool as an 11 year old....
Grifter. Way cooler than the twenty, but made of cast lead.
Then my first road bike, a Puch Pursuit, which I sprayed lime green - great bike for a kid.