Why do they sell cigarettes at a gas station if smoking is prohibited.

Because it's not prohibited, it's completely legal to sell cigarettes to anyone over 18 as long as あなた have a license, but private businesses (or business chains) can prohibit smoking on their private property, also cities and states can ban it in public places. 全体, 全体的です there is nothing illegal about a gas station selling them, so they do because it brings in a majority of their income (that isn't gas).

Smoking isn't prohibited....it's fully legal as long as you're over 18.

i duno coz their stupid

1.because it's NOT prohibited
2.because adults can buy them and smoke them in CERTAIN places.

probably bcuz people are so addicted to it

ya u cant smoke at "gas stations" because of the petrol for obv reasons.....they do because theres high demand for "cigarettes" its not like there going to smoke them rite at the "gas station" newai

Your not allowed to smoke at a gas station otherwise あなた and your car go BOOM but they can sell them for the people to smoke later on. That's not a bad thing but it's common sense not to smoke in a gas station so they can sell them

are あなた 14?

Where I live it's not prohibited; it's simply age restricted.