I can't speak for Sweden, and I don't know why it happens anywhere, but a lot of smokers do inexplicably fail to see their throwing cigarette butts on the groun

I can't speak for Sweden, and I don't know why it happens anywhere, but a lot of smokers do inexplicably fail to see their throwing cigarette butts on the ground as littering. I know people who are not, generally speaking, assholes, and would never otherwise litter, but think nothing of doing this.