Let’s consider firstly that the investment needed for a start-up changes between works of services and production. Ceramics is both and requires, for the production, an equipped space (machinery, deposit, packaging storage, rubbish) and for the services (design, communication, marketing etc.).
We can have 2 start-ups types:
Ceramic designer only (outsourcing production). If you have a high knowledge of the whole process then you can design and commission your pieces without directly producing them, or only making a prototype (design thinking method);
Ceramic designer and producer (ceramist). Nowadays the possibilities for a young ceramist are to open his own brand new studio potter; to take over the studio of another ceramist; to cooperate with an existing studio for defined/special production; to activate the start-up inside an equipped coworking space.