The article doesn't seem to touch on the homeless issue. Have any studies been done on how much public usage of the literary resources of a library have dropped

The article doesn't seem to touch on the homeless issue. Have any studies been done on how much public usage of the literary resources of a library have dropped since most libraries have morphed into defacto "safe places" for the homeless to stay during the day? Would a "private" library have less of this? My personal take is that we should absolutely have and fund these places (and drastically more mental health care spending), but a library is not the right location for a homeless refuge.