As an ex founder of similar ideas, good luck to you. This needs to happen. I'm just curious: doesn't tea give you a British angle?
Every culture that has tea will have flavored teas. It gives you something to do with the low-grade leaves. Just last night I tried ginseng oolong for the first time. Is it as artificial as earl grey?
"Tea flavoured with bergamot to imitate the more expensive types of Chinese tea has been known in England at least since the 1820s. In 1837 there is a record of court proceedings against Brocksop & Co. who were found to have supplied tea 'artificially scented, and, drugged with bergamot in this country.'"
Yes, I'm quite a big fan of oolong flavored with osmanthus; haven't tried ginger.
When I moved to SF ~10y ago, you could get tea or coffee with strangers by walking into a cafe, but it's become taboo to talk to strangers in public when sober.
But generally, no. Haven't had any trouble on this front, thankfully!