There are a lot of middle to late career developers who write code that is difficult to debug. It's a feedback loop. You write garbage code, the debugger is confusing, so you use the debugger less, so you get less feedback on your garbage code, until eventually other people can't debug your code either, or only invest the energy to do so when something has gone horribly wrong.

Or you write debugger-legible code, you use the debugger, and you get feedback when the code you wrote confuses the debugger, so you refactor it to be easier to diagnose the problem, then you commit those changes.