Heat doesn't bother me too much. It's the humidity. The part of Iowa that I'm in can get upwards of 95% humidity, coupled with an 85 degree day, the heat index is well above 100.
The beauty of air conditioners is that they suck out the humidity. Just reducing the humidity by 40% can make for a fairly comfortable environment.
Many elderly people can't tolerate high humidity. It makes it very difficult for them to breath. And, if you have emphaziema, it's even worse.
I remember over 500 elderly people dieing in Chicago a couple summers ago because of the heat. None of them had air conditioning.
A college student may be fine without it(provided that one does not have a serious case of asthema), but for many elderly, it's essential.
Now what this post has to do with the thread, I dunno