Your statement flies in the face of reality. For a child sake I wouldn't want you to be responsible for their safety since you think all children should behave like little adults concerning safety. Children are children. They don't always look both ways before crossing a street. They don't always think before darting out between two parked cars chasing a ball.
The powers that be, the ones we elected must have done a study that determines what the mph should be in that certain area. The speed limit in the one the woman got a ticket in was 20 mph. She exceeded the limit and was ticketed for it.
Rules, our lives are dictated by rules. Without them there would be mayhem and chaos.