One other aspect to this is that the farther north you go, the less daylight there is, no matter what. So northerners might be less willing to give up daylight saving time - we have less daylight to begin with, and therefore fewer daylight hours available for leisure activities.
Not true at all. In the summer, there is more daylight in the north (Barrow, Alaska has 80 days of continuous sunlight). The closer you get to the equator, the more uniform the days are year-round (around 12 hours of daylight, regardless of time of year).