On the topic of safety, the US has enforced the provision of back-up cameras, because people kept running over their own children backing out of their driveways.

A very direct safety cost of large vehicles. Here is the story of the child that had the American law named after them, told by his father (warning: this is truly heartbreaking stuff):

https://www.kidsandcars.org/child-stories/cameron-gulbransen...