Why indeed. Where I live we have vacant free shelters where one can get a bed, a shower and a meal, and yet there are those who absolutely insist in pan handling for their next bottle. A sad picture.
More to the point, have you ever been mentally ill and spent weeks, months, or even years in shelters?
What assholes! I mean, I know plenty of people who have the audacity to work in high tech to support their alcoholism!