I assume you have never lived in Houston. Right now at 5:30pm (17:30) it's 95F (35C). I don't wanna walk 20 mins anywhere in this heat, I don't wanna stand and wait on the bus in the heat, I can't go pick up ice cream from the store and walk it home in this heat.

Surely you think, summer isn't that long, just tough it out a few months. Well I regularly run the A/C in the "winter months". Several years ago during the week of chistmas, I went to a late night movie, as I was walking back to my car to go home I noticed the following: at 11:30pm it was 80F (26C), the humidity was around 80-90%, and I was wearing shorts.