Teaching And Selling: A conflict of interests?

by Ruth.
(The Netherlands)

I am preparing to start turning my jewellery hobby into a business and am thinking about the possibility of running classes and selling kits with tutorials as well as selling my own work.

But I am wondering whether this would be a conflict of interests. Would having people become enthusiastic about making their own jewellery cause a reduction in sales of my own work?

And if I did do both, would it be OK to market both services on the same website?

I would appreciate advice from anyone who has already been there and done that. Thank you!

Ruth