Oh and I let my child when she was 4 get on a bus to and from school
And no, it wasn't a specifically "school" bus but there were loads of other kids from the school on the bus and I went the first day to make sure that she knew what she was doing.
And after about a week of her coming home from school on the bus on her own, she announced that she was a big girl and could walk from the bus stop on her own.
It involved crossing a tiny road and I was beside myself with angst that she might not be able to manage the titchy road on her own. Cue much hiding behind bushes in the garden trying to spy her crossing the road.
My next door neighbour spied me one day and asked me what the hell I was up to and I told him. Bless him he just happened to be walking his dogs past the bus stop every day at the time she got home for 6 weeks til we were very sure that she could manage.
She never suspected a thing!