It is a catch 22 situation - without good public transport most people have no option but to rely on their car.  I'm lucky living in London - most of my usual buses run every 8 mins during the day, and even run all night at 20 min intervals!!  We sold our car over five years ago, hiring one when it's unavoidable.  However, I tend to rely on buses and trains.  You can catch a train to just about anywhere in the UK from London with only 1 or 2 changes so we really are spoilt.  At a recent wedding in Wiltshire hubby and I beat the car driver's journeys by hours.

Unfortunately so few people are in this position - it makes me really angry how bad public transport is in the rest of the country.  It's impossible to get people out of cars if there is no realistic alternative.