Completely agree, there's a strong cultural part in the confidence of the incompetent and it's especially one that I've noticed with Americans and their obsession with self-esteem regardless if it's based on competence.
In many parts of the world it's much more frowned upon for the less experienced to voice their opinion, and that forces them to really think if they want to say what they're thinking. It correlates a lot with respect to authority, and comes with the downside of missing out on the originality of youth at times.
Personally, I'd prefer a middle-ground, but one where experience and competence are weighed into considering any opinion.
In many parts of the world it's much more frowned upon for the less experienced to voice their opinion, and that forces them to really think if they want to say what they're thinking. It correlates a lot with respect to authority, and comes with the downside of missing out on the originality of youth at times.
Personally, I'd prefer a middle-ground, but one where experience and competence are weighed into considering any opinion.