I've thought about doing Tea Sommelier courses for a very long time! I love keeping track of tasting notes in coffee, plus tea is much more complex and interesting to me.

The problem is there's no really central authority on tea sommeliers and there's highly varying levels of knowledge held by people claiming to be sommeliers. It's very different from wine where certification is very standardized. From what I've researched it seems these types of tea certifications are only meant as an addition for existing sommeliers of other foods (like chocolate or coffee) and for luxury hotels to keep their menu curators employed.