I am unclear what sort of research went into these categories. They seem effectively anecdotal and subjective - there's no statistics or studies being quoted th

I am unclear what sort of research went into these categories. They seem effectively anecdotal and subjective - there's no statistics or studies being quoted that I can see. Sure, something like "informal sociology" is something that I think everyone does and I don't think that's a bad thing by itself. Such "studies" become more problematic if they are presented in the form of science, especially in situations like homelessness where average people's vague impressions of the homeless can go into homeless policy - ie, where shelters should be, etc. I mean, my also anecdotal impression is that a lot of people move between some or all of the categories that are listed. That movement involves getting or not-getting sleeps or medication, random walks between doing well and not doing well, the rise and fall of relationships, etc. But altogether, if any actual policy is being made, the best thing is making a study what percentage of people will benefit.