Best not to work in the US. They drug test like crazy no matter how trivial the gig is. Even back when video rental was a thing, Blockbuster Video required employees to give hair samples proving that they never smoked pot for the time it took them to grow the amount of hair they have on their head.

Europe is smarter. If someone’s career is incompatible with the drugs they take, it’s the /doctors/ job to block them from working. Employers cannot invade the privacy of workers by drug testing; rightfully so.