No matter what you study, don't think about learning it just to make money. First of all, we should be interested in it in order to do natural business better. Some people say that manicure is slow and time-consuming, but have you ever thought that because manicure is cheap, there will be more customers, so you will naturally have a chance to learn about your other skills. Personally, I think learning both can beautify not only myself but also the people around me. Why not?