Same here, only it was in the mid-80s as I was approaching 30. I don't know if the dope changed or if I did, but it just wasn't fun any more.
Then I worked in an industry where drug testing was required, so I didn't smoke for decades. Now I'm retired and I suppose I could get high again, but I just don't want to. I've practically quit drinking, too, not sure why.
My last employer did random drug testing. Whenever I was at my brother’s house
I had to ask him to please wait until I was gone, or we went outside to light up.
I was afraid the second-hand smoke would cause me to test positive ar work.