You could say it's part of the family business.

[ Any witch who doesn't know about brewing potions or the ingredients that go into them isn't a witch worth knowing, really. Even the most basic and weak of witches can do that. Only the strong ones get active powers. ]

I mean, if you want, you could come with me. I'd at least show you what I'm planning on getting. Teaching isn't really my thing, but... [ They're kind of in this lab support thing together. ]