People are going to use it, so telling them not to doesn't work. You can demonstrate the proper way to use it, and caveats of using it directly without any thou

People are going to use it, so telling them not to doesn't work. You can demonstrate the proper way to use it, and caveats of using it directly without any thought, but you need to explain how to analyze code, and how to check that it's doing what you think it's doing. Also remind them that it won't come up with new ways to solve a problem - it's trained on how people solved problems in the past, but not all the possible ways to solve a problem. The best students probably wouldn't use it, and wouldn't need to, or they will use it, but know when it's giving an inefficient or insufficient response. Either way, you can't stop it, so learn to harness it.