I"ve taken workshops and will admit that I didn't always precut fabrics, but there was a reason that happened. But I did not expect the instructor to give me one on one help when it was my fault.
I also don't like it when someone in the class brings half her stash because she can't make a decision on which fabrics ro use and expects the instructor to help her with every decsion. And then doesn't like the choices that the instructor gives. I don't know why they even sign up, it seems they are not there to get anything out of the class.
I just find that behavior rude. As an adult, they should have learned some courtesy by now.