Once out of nature I shall never take
My bodily form from any natural thing
-Yeats, “Sailing to Byzantium”
Yeats was not talking about bug-based food dyes but let us stretch the metaphor, loving Yeats as we do.
After a teenage stint at veganism (a fine diet, if you have the time and money to spend pursuing it) I came of legal drinking age with a mind unruffled by ethical concerns where my alcohol was concerned.
But the world (and the Bay Area in particular) is full of cocktail enthusiasts with varying dietary and ethical requirements. Early in my California residency I bellied up to a bar where I was warned that my milk stout had lactic acid in it and I should choose another tap if I had lactose issues. That sort of statement made in Wisconsin would get you kicked over the border into Illinois.