Idk if the second part is really fair - as a Texan turned SF resident, I can understand how the Texas heat can be alarming at first. But if definitely didn’t stop us from going outside, doing things, holding sports practices (outside the rare 115 degree day), etc.

The AC is appreciated, but you get acclimated to the heat. And anecdata of one, but I really miss the heat / humidity.

Texas civilization does predate AC after all for at least a couple centuries ;)