3d printing courses in public libraries

Has anyone taken a 3d printer course at a local public library?

I’d love to know your experiences with these sorts of courses versus YouTube-University.

Our library has a maker space and they require everyone to do their little seminar that basically shows you how to put the filament in and start a print on their Ultimaker 3. I printed a few things over there but I didn’t want to count on being able to use that machine because I can give it a lot of work and there are lots of high school kids and others that want to learn and would have felt bad if someone was left out.