Of course in this day and age nobody would allow their kids to wander all day on their bikes. Too Dangerous.
When I was 14, I used to ride all over town on my old Peugeot gas pipe 10 speed.
I would cut the lawn at my Grandmother's and my aunt's houses. I would go to the park, I would visit my friends, I would just ride around.
The daughter of a friend of mine is 14 and likes to ride her bike and wants to earn money cutting lawns. It is about a half hour ride over to my place, mostly along bike paths, one steep hill. Will her father let her ride over and cut my lawn? Not a chance.