The barista doesn’t want homeless people in the toilet because inevitably crack paraphernalia goes in there too.

Better to have shit on the street than crack paraphernalia in your business toilet.

As a data point, yesterday I was walking watching two guys smoking crack outside Costa in Covent Garden, London.

Alas it works to the lowest common denominator. A better solution would be government investment in mental health and housing but most of the world works on “fuck you I’ve got mine”