You are required to take and pass paid courses to get a license in most states these days. It was a huge barrier to a lot of the guys in the halfway house. Just coordinating getting to these classes via the bus was a pain. Also, if you return 15 minutes late to the halfway house the US Marshals come pick you up and back to jail you go, so missing a bus has pretty steep consequences that make people avoid any additional bus trips such as getting to drivers training class (you are required to work so you have to risk the bus at least twice a day no matter what).
