It's good to have a teacher who can recognize the moment when print-debugging is no longer sufficient and a real debugger will solve the problem immediately. I

It's good to have a teacher who can recognize the moment when print-debugging is no longer sufficient and a real debugger will solve the problem immediately. Introducing debuggers too early leads to lots of "why do we need this? I can just print..." It's a catch-22 though, because ideally you'd learn the debugger in an intro course, but intro course problems can usually be debugged with simple print statements.