I live in a country where smoking has generally been on the decline for a while now but even still I see thousands of cigarette butts in just about any public place. They litter the sides of the road, bus shelters, alleyways, outside clubs, bars and pubs, public toilets, park benches and just about everywhere else. Its even extending to disposable vapes now as well.
For the most part, where I live doesn’t have that much of other kinds of litter about and is generally clean. And most public bins and all smoking areas have ashtrays and dedicated cigarette bins so it wouldn’t be hard to dispose of them properly like any other piece of rubbish and even then there’s often cigarette butts within sight of the bins and ashtrays.
Why then do people have a completely different approach for cigarettes?
Because it generally takes a certain type of person to smoke and there happens to be quite a lot of overlap with the type of person who’s fine with littering.
I.e. If they don’t care about themselves, why would they care about anyone else or the environment around them?
Precisely. And I’d argue that secondhand smoke and its effects already applies as not caring about others or the general environment.