I think it is a national shame that it still goes on.
When I was 20 (1967) the flatshare that I was in collapsed (the other tenants left)and I was left on the street,and was so for nearly a year.I don't really want to look back there,it makes me feel queasy and shiver.I am disgusted that this is still allowed to go on.It should be a right for a person that they have a roof( of whatever kind) over their heads,and not be afraid for themselves living on the streets.
Being homeless and sleeping rough DOES alter people's attitudes to you,I was treated worse than pigs or cattle.How we can change it I don't know,but I am sure that there ARE ways.