On the other hand a lot of drug abuse among the homeless is self-medication because of the stress associated with living on the streets or due to untreated ment

On the other hand a lot of drug abuse among the homeless is self-medication because of the stress associated with living on the streets or due to untreated mental health issues. As long as housing and mental health remains an open issue, personally I'd rather have them consume stuff made by an actual pharmaceutical company at pharmaceutical grade instead of completely unregulated dark market stuff that can have absolutely wild (and deadly!) swings in dosage, even from the same batch.