Usually I get around by driving my mom's car that I share with my brother and sister; or my mom, stepfather, dad, grandma, or grandpa takes me where I need to go. Suburban St. Louis, especially the "better off" suburbs, doesn't really have much of a public transportation system. People use cars. Period. There used to be a bus route close to the subdivision I live in, but I think Bistate lost funding, and they cut back on routes no one used--like that one. If you want to use the bus system, you have to take it somewhere it goes, which isn't really convenient.
In other American cities, the public transportation system is much better and is actually considered something most people--not just poor people--will use: San Francisco, California; Chicago, Illinois; and Washington, D.C. to name the ones I've been to. In San Francisco my family and I took the trolleys, cable cars, and BART. In Washington, D.C., we used the Metro. In Chicago, we used taxis, which is close enough to public transportation, in my opinion.