Many cities suffer from serious air and noise pollution—as well as endless traffic jams—because of too many cars. Some people feel that cities with extensive public transportation systems should ban passenger cars and force people to walk, bike, or use public transportation. Do you think this is a good idea? Why or why not?

Many cities suffer from serious air and noise pollution—as well as endless traffic jams—because of too many cars. Some people feel that cities with extensive public transportation systems should ban passenger cars and force people to walk, bike, or use public transportation. Do you think this is a good idea? Why or why not?