After a particularly nasty cut from sliding down a metal pole (nothing real serious, just blood, no stitches), mom made an appointment at the doctor for a tetanus shot. I bicycled myself to the appointment. Nobody batted an eye at unaccompanied 10 year old showing up at the doctor's office for an appointment.
I was bit by a dog, took the bus to the hospital with my little sister who I was babysitting, got stitched up and went home by bus all before my folks got home from work.