Most people deal drugs cause it's the only option they have to make it. With UBI they get to choose what they do with it and if they fail they can just try again because the UBI will keep them fed. Without UBI they stay in the drug game because it's the only thing they rely on.If these people will get "free money" to spend however they wish, I'm going into the dope dealing business the first week of every month then taking the next 3 weeks off to sleep on my pile of money.
Might offer tattoos and $150 hair dye jobs on the side as well.