More training would be excellent. Better training would be excellent. Any training would be a splendid start.
There exists an abundance of courses out there to help laypersons with these issues. Probably just about everyone in the room at some point has learned standard first aid and CPR. There is a course called ASIST, or applied suicide intervention skills training. There is mental health first aid. There is psychological first aid. Within military and first responder circles, there is Road to Mental Readiness. There are a ton of courses that teach people how to identify that someone is struggling or in crisis. Just as you assess airways, breathing, and circulation in first aid protocols and intervene as appropriate, likewise when you detect that somebody is in crisis, there are structured approaches that guide you through how you actually interact with that person. If an infantry idiot like me can get them, anybody can.
The Mental Health Commission of Canada last year adapted mental health first aid for the veterans community. I helped review their material to give it some military flavour, as it were. That is very slowly getting pushed out now. The first batch of instructors has been qualified. The Royal Canadian Legion is helping to spread that, but it's very much a side project. It's slow.
That is just one option that's out there. There are, as I said, many different possibilities. The Royal Canadian Legion service officer training that they give to all their service officers to help guide people into the Veterans Affairs process, and to deal with crises should they emerge during that, is also excellent. That potentially could be part of a prototype for training that could be broadly offered. How they would go about doing it is probably beyond the scope of what I can answer in a brief question here.
All the necessary training exists. It just needs to be collected and packaged, and a viable delivery model determined.