No clue if this is common among adhd, but i find chemical addiction absurdly easy to stop. To the point that i would say ive never had a chemical “addiction” despite imbibing a lot of chemicals.
Habitual addiction, though, suck. I can vape 0 nic perpetually just as well as 21 nic. The important bit is the smoke, not the chemicals in it. Its a habit, not an addiction.
Well, thats the objectively wrong answer