How can you ensure that the exercise actually teaches the students anything in this case? Shouldn't you be building the exercise around the kinds of issues that are likely to come up, or that are difficult/interesting?

If you're teaching ethics in high school (which it sounds like you are), how many minutes does it take to write three or four paragraphs, one per case, highlighting different aspects that the student would need to take into account when making ethical decisions? I would estimate five to ten. A random assortment of cases from an LLM is unlikely to support the ethical themes you've talked about in the rest of the class, and the students are therefore also unlikely to be able to apply anything they've learned in class before then.

This may sound harsh, but to me it sounds like you've created a non-didactic, busywork exercise.