Good on you wealth. I've had to deal with mental health issues in my immediate family and its very difficult. I had a sibling who was bipolar and many were in denial about her condition. Getting the right help is key and sometimes you have to stamp your feet a bit to get people to pay attention. But its worth it. We got there in the end and she is making a success of her life again which is very satisfying.
Mental health issues are not talked about enough. Like you said they are pretty common and shouldn't be swept under the carpet.