Trust in institutions is really high here in Finland. Anecdotally, from what I've seen and heard from people who have struggled with issues (including addiction and on-off homelessness) they seem to regard those people well. Social workers, police, healthcare workers, volunteer people, those people from the "system" or close to it that interacts with them a lot are usually held in high or at least moderate regard. Of course miffed if the police "hassle" them by making them leave or stop drinking in public or something like that, but still respected and considered at least alright.

Not to say that the lack of trust couldn't exist. If we believe that most seem to have some level of trust, then it would fit in with the numbers in that Finland has fairly low levels of homelessness.