I'm sort of doing this now. I'm a full-time software engineer, and I have a passion for tea as well. I've been reading a TON about small business, entrepreneurship, etc. My wife and I are in the processes of launching a side-hustle online tea company, and documenting the whole process on our YouTube channel. It may not be a full-time gig, but we want to grow it as far as we can. So, in short, we're sticking with the safe jobs we know and leveraging our free time to build something we love.
FWIW there are some people doing small- to medium-sized businesses in Very Serious Tea here in Europe and while it doesn't seem to be Republic of Tea 2.0 money-wise they do seem to really enjoy it.