Why is this being downvoted? A younger colleague participated in such a course (because he was on an NIH-funded project), and it was case study after case study

Why is this being downvoted? A younger colleague participated in such a course (because he was on an NIH-funded project), and it was case study after case study, together with "how would you have acted in such a situation, and why". He reported that he found it extremely useful.