If anything, I think the jujutsu project as it exists today is probably most attractive to people who already know Git quite well. It's hard to articulate why a given VCS design or workflow is pleasant without having some firsthand experience of nontrivial things that went wrong or at least chaotic.

Among the hard work on the jj maintainers' plate is making it just as attractive and intuitive to people without that background.

Why on Earth would these be in any way incompatible?

I’ve been using git for 15+ years,and definitely share the sentiment that basically everyone needs to learn it well as it is just that entrenched.

…but I love that people are coming up with potential alternatives that have a meaningful chance of moving the whole VCS space forward.

jj is compatible with git repos while being faster to learn and easier to use. There’s basically no reason for anyone to learn git now that this exists.

jj seems to be the slowly evolving winner of these alternatives. It just does things on top of git that you cannot do by using git directly no matter how well you know git.

git is dumb. it's in the name. it's good enough, but it is not the best possible tool. neither is jj, but it's a damn fine improvement in some workflows.