Sometime they don't let you know that they know that they don't know everything but the core of the medical approach is that you try to identify pathologies which are subsystems within the human body or the larger system that are having undesirable consequences.
I'm quite jealous of my Scottish relations, in whose culture everyone, in a Jane Austen kind of way, got married very young, when you're too young to be cynical or jaded and just started having children.