That's rather terrifying. I can't imagine getting high in my seventies. I have no friends but for my wife. My former co-workers who did get high made me uncomfortable when in situations where they might break it out.
In my running around days I was 500 miles away from where I live now. It wasn't the same walking out in the pasture and toking alone. That made it easy to leave it behind.
I think they have replaced drinking alcohol, in large part, with cannabis, as they've gotten older. I'd like to do the same, but I can't bring myself to ask them to get me some.