I think a lot of people with mental health problems could attest that this is not always very effective, most often you exchange the reality you’ve been living in for some kind words and then inevitably the normalisation of your problem.
Sure. But there's always the chance—and not a small one!—that someone will have experience with mental health issues, know someone who has, of have an idea about how to help.
Gotta start somewhere. And the best thing to do is to try lots of doors.