My younger brother would leave the area. He started out as a pot smoker and progressed to heroin. I'm not suggesting pot is a gate way drug. I'm just stating a fact. It took heroin 3 years to destroy him.
It took him 15 years to rebuild his life working the 12 steps of Narcotics Anonymous. He never fully recovered his health. He acquired hepatitis C from sharing needles. He destroyed his family and irreparably damaged
the lives of his 2 young teen daughters. But, he is a much better person today, for having earnestly worked those 12 steps. He refuses to put himself in a position which could undermine his sobriety.
As for me, I could care less. My problems weren't psychological. I quit drinking and hung out with my friends at the bar for 6 years. They drank shots and beers, and I drank diet coke. They got used to it.
My only concern with hanging with those smoking reefer, is that it is illegal. It also has an easily identifiable odor. I wouldn't care to be rousted because I was seen as participating in the process.