Why isn’t learning about public health a larger part of becoming a doctor? [TheConversation.com]

Of course medical students need to know about public health and prevention, etc.  But what are the factors that mitigate its occurrence?

Is it that (like teachers), they're stretched and have enormously competing demands?  As a general practitioner (or in a hospital ward) they have a 10 to 15 minute window in which to diagnose the problem, which often very obviously manifests its presence with a physical symptom, or at least that is what is chosen to attend to.  Physical can be complex enough in itself. Is this potentially fatal or chronic that impairs lifestyle is the main question of the investigation. Dealing with mental and physical health is a big ask.  The question I ask is:  how do we make it easier in the real world for there to be a more nuanced holistic diagnosis?  With kindness not judgement?

I believe part of the answer would be in choosing to conduct 30 minute consultations, but that doesn't seem a possibility at the moment, for a variety of reasons.  If a doctor believed the answer lay in a lifestyle change to prevent or to halt further progression of the given health problem of the client, then they could book them in for that time for the next consultation.  To then be able to further analyse the source of a problem and refer to appropriate people and resources. It could also lead to doctors becoming more vocal in their advocacy of what their particular community needs (and may be currently lacking).  The article does note a small but positive change in this direction.

Just a thought, I may be completely oversimplifying...  But is prevention part of what doctors should be doing and if so, just how can 'we' make it happen?!