People with mental health issues need help and support. Just because there’s a pithy saying, doesn’t make it universally beneficial to have suffered hardship.

Not sure what else you’re expecting? I’m not advocating imposed hardship, just trying to give some context for why it can often lead to a more robust and driven person. It’s clearly not universally true.

I imagine there are lots of veterans that are able to cope and have become more robust. But there will always be mental health aftershocks, because that’s why it was a hardship in the first place.