And I partied in the 80s and didn’t turn into an alcoholic or drug addict. The majority of people didn’t. Erin Moran, like some others, had way more problems than just occasionally drinking or whatever. She was an addict with mental illness.
A a lot of us were there, we could drink and party and turn away at any time. At the same time, we knew people who once they started could not stop. The only factor I could ever trace it down to was impulsivity. The people I knew as kids and young adulthood who were impulsive in other matters ended up with addiction issues.
I was lucky. I was in a band, we toured, we had anything we wanted made available to us, and even substances we did not want were given to us. A couple of my bandmates were not so lucky, they could never say no or knew when to stop.