Smoking on airplanes
We dare you to casually light up a cigarette on your next flight. Of course, most people know that doing this is just crazy, ignorant, and illegal. Meanwhile, those who lived in the ’60s didn’t even think twice to do so. It was pretty normal to smoke in an airplane. But by the mid-’90s, most countries had already banned smoking in the air. Some of the only holdouts were Cuba and China, stubbing cigarettes out in 2014 and 2017, respectively.