I do not want to use waitlists, but I cannot turn this off. What do I do?

It is nearly impossible to prevent students from placing themselves on a waitlist for a group. However, with clear instructions to your students, you might be able to prevent this. Keep in mind though, that until the self-enrollment process has closed the waitlist also makes it easier for students to unenroll if they for whatever reason do not want to be in a group anymore. The waitlist then makes sure that the first person on the waitlist gets promoted to the group. This also ensures that if there are enough students interested in that group, you are not left with empty spots in groups.