100 miles is not sufficient for commutes in America these days. Many people drive more than 100 miles in a day. Even if they don't do it every day, the drive

100 miles is not sufficient for commutes in America these days. Many people drive more than 100 miles in a day. Even if they don't do it every day, the drive to/from work plus an extra shopping or social trip in the evening could easily put them over 100 miles. The problem is that, because of cars, they built everything farther apart, and people willingly chose places to live farther away from work. Just look at a map of the city of Phoenix AZ for instance: 100 miles' range won't cover a trip from one side of the city to the other side and back. However, for vacations, a rental car is absolutely the right idea. That's what people here in Tokyo do: there's lots of convenient places to rent a car for shopping trips to Costco, or a trip to the mountains, etc., because so many people don't own cars.