time, focus, priorities, or just curiosity to learn. people have their reasons. Nothing against SQL btw, but very difficult to make someone learn something, especially in authority. There must be people who have done it, it's not none or all, just needs curiosity & effort to learn.
Agreed. It matches my experience as well. I boil it down to personality and orientation than seniority in the org honestly. I have seen VP/Director level people who secretly tinker in SQL alongside delegation 99% of the time. Those who want to learn SQL will do it soon and the rest have some kind of mental block.