Quite how one can manage in the US without a car I fail to imagine. Ok in some of th more Public Transport enlightened Towns/Cities but the rest of US, well you are pretty much dead in the water.
JonD
Depends on the area being visited whether you can manage without a car. Most of my trips have been to the eastern seaboard between Boston and Washington DC, so public transport provision is good there, and with the delights of the internet, you can get full details of bus services provided rather than "going in blind". Some places that might be unlikely bus territory - eg Lancaster, PA, have an almost "European" network of urban
and country bus services, with very cheap day tickets.
This years jaunt to Seattle and Portland in the Pacific NW covers two main cities with excellent public transport (tram/trolleybus/bus/local rail) with day tickets costing $8 and $5 respectively! Travel between the two centres will be by Amtrak. If you take into account the number of breweries in each city (another interest on the trip other than the transport side), you wouldn't
want to drive!!!!
I've certainly done a lot of driving in the US (and Canada) on previous trips when I have hired a car - one of them racking up a mere 3674 miles of solo driving around the mid-west in a 3 week period...........