I volunteered at one. Keep in mind, it's usually volunteers who are just doing their best. The only financial incentive I got was the selection of teas available. I didn't even get a reference afterwards.

There's only so much you can do. The only thing in my power was listening and talking. I couldn't send the police. I couldn't connect them with a therapist or psychiatrist. I can't actually solve things that tend to plague people, like health, relationships, money or other. Of course I'd love if I or the service provided those options, but it's not within the scope of what they do.