>>" there is a good difference between knowing the solution for something, and convincing the patient to abide to that solution."

This is an absolutely key observation in many facets in life, and I still struggle with it.

Whether presenting an IT solution to client; or something more mundane in real life, knowing or arriving at the "right answer" (let's leave that definition / certainty on aside for moment;) is only part of the battle - and not even necessarily the hardest one, requiring most of one's empathy/cleverness/skills. Making it happen, likely by convincing/persuading all the parties, is frequently the more difficult, and certainly for me the more frustrating, part of the process.

As a (historically) technical geek, I've (historically) been of the narrow minded "Here's the right, demonstrated, supported, proven answer; why are you not following it? I don't understand what's happening..." outlook. I'm getting a bit better in my old age... :->