This is one of the very few that I'm a little -- a little! -- sympathetic toward. I don't know its origins, but to me, "lessons" can sound kind of harsh, like

This is one of the very few that I'm a little -- a little! -- sympathetic toward. I don't know its origins, but to me, "lessons" can sound kind of harsh, like in the sense of a parent wagging their finger at a child, "I hope you've learned your lesson!" In contrast, "learnings" sounds quite a lot more friendly and less charged.