I had to google this "mental health first aid" concept. I was amused to discover that it's focused on increased productivity, reducing employee turnover, reducing leaves of absence... not much about the employee who is struggling... I wonder how many people dare to speak about their mental issues when it's obvious the HR will hear you're struggling - obviously you're not going to get a promotion implying more responsibilities since you cannot handle those you already have, and you might find yourself unemployed rather soon.