I don’t believe I ever claimed that trauma is the sole cause. As stated in an earlier comment thread, I believe based on experience that it is the primary cause especially of the most severe cases.
I do think you bring up a good point about some substances which are so physically addictive that it might entrap people who are less psychologically vulnerable than trauma survivors.
That said, if you don’t mind me pushing for a bit more clarity here - you must have known going in that heroin is an exceedingly bad idea due to its physical addictiveness. What was it that caused you to start taking it? I am genuinely curious, not here to judge you.
I might guess based on your comment that peer pressure may have been a factor, given many friends who were addicts. But if so, what was the root cause of the insecurity that caused you to be vulnerable to peer pressure in the first place?
(If it wasn’t peer pressure, whatever it was... basically I’m just trying to understand what was the root cause of you personally making the unhealthy decision to try heroin)