That’s not been my experience both domestically and internationally. Cities like Vegas and Phoenix didn’t exist (and cities like Lima and Cairo were much smalle

That’s not been my experience both domestically and internationally. Cities like Vegas and Phoenix didn’t exist (and cities like Lima and Cairo were much smaller) before AC. People simply wouldn’t be here if they couldn’t afford it. Domestically, it’s a legal requirement. You can’t legally build a home or rent one without it, anymore than you could without heating in Minnesota.