I'm relegated to that it's mostly the size and complexity of the project as a whole. If you ask me to write small automation scripts that will quickly become obsolete I will choose bash/python every time. If you ask me to make something that has to last a while and requirements won't change a lot and is of a decent size I might write those same scripts/apps in rust or c++ (modern! 17+) for maintainability and disciplined structure. I think a lot of people are in one camp or the other, but I like to be in the middle somewhere, hopefully seeing the advantage of both.