When I was younger than 13 on two different ends of the US (Hawaii and New England), I took the city bus or rode my bike to go to libraries, bookstores, and other things in town; walked to the neighborhood pool; and so on. This would have been in 1988-1990.
It weirds me that not only are many parents not okay with that today, but that the schools and police have complied with their anxiety. Do you really want to have to drive your kids literally everywhere?