We have an annual craft camp weekend. The first year I taught, I made kits and everything went well. The class was easy to teach. This past year everyone brought their own fabric and there was an issue with one individual.
This coming year I am teaching again. I will probably make a few kits just in case someone wants/needs one. I can always use the kits for making gifts/door prizes. While kits take more prep time, they make teaching a lot easier.