Oh, it absolutely is, and from what I've read, it can work really well! It's just not necessarily a 'one size fits all' which is what makes medicine complicated and good doctors valuable.

If someone's hit the point where they're thinking "I'd rather be dead than leave the house", improving their mental health by any means necessary should be the first step. But not everyone should be given pills as the first option and many doctors are guilty of such laziness (over prescription of opioids and antibiotics are other examples of this – some patients urgently need them, most don't).