classic

Portable pocket ashtrays. Very common in some places

To add to this, it’s also modeled in our media.

Characters be flicking them everywhere, pitching them to the ground and decisively tamping them out with their foot, because that is what being cool and tough is about. The only time someone is depicted properly disposing of a cigarette is if there’s an ash tray they smish it in, preferably next to a glass of hard liquor or a beer.