As a teenager in the 90's, I bicycled 20+ miles away into the mountains onto steep fire roads and ridge trails. In middle school at either 12- or 13-years-old, I went on a 2 day 72 mile (roundtrip) road cycling and camping school trip from San Jose to Mt Madonna; granted that was chaperoned but not by anyone my parents knew. I couldn't afford a car until college. If I wanted to get anywhere, it was on a bicycle or maybe the occasional city bus or light rail for somewhere far away. Mom was working a full-time job and taking night classes to finish an accounting degree.