Okay, squeak and popa, let’s hear your ideas of what would constitute a valid study, and how to conduct it.
As far as I’m concerned, especially since I am not advocating and never have (IIRC) advocated any changes which are not anyhow positive, I am willing to assume that there are no reasonable explanations for how age gap is not a major contributor to the problem. If there were, squeak wouldn’t have to suggest humorous ones.
And popa, who says there’s a crisis for the MO? Any hard data?