Well, as I said earlier, I believe that peers and professionals have complementary roles. Are three days of training adequate for a peer helper to be able to provide the support he should be in a position to provide? In my opinion, we are talking mainly about support in the form of listening, but not necessarily extended listening. I think the idea is that this person becomes a kind of vector who may be able to encourage or bring the individual involved to seek the services that are available.
I think the role of a peer helper really should be to do the strict minimum and simply get the individual to avail himself of the professional services he or she needs. Otherwise, it continues to be a case of specific skills or aptitudes. If there is no serious problem, if the person is just sad or a little anxious, it is possible that active listening will be enough. On the other hand, if there are more serious and persistent problems, and notably PTSD, I believe the peer helper's role, which should be valued, is to get that person to actually make use of the appropriate resources.