I'm pretty sure people in Denmark are not as tied to gasoline as they are in the USA. The country is smaller to begin with, and likely has better public transport, cycling, and pedestrian facilities.
I guess the next major costs to compare are rent and health insurance?
Health care is free in Denmark. You don't need insurance. If you really want to you can buy insurance to lower the cost of some treatments that are not covered like physiotherapy, dentistry etc.
I guess the next major costs to compare are rent and health insurance?