Coming back to this... I think I'd mostly be concerned about the taste/texture. As it is, most of us grew up eating animals bred for consumption. Meaning... eating a game bird or wild venison or something tastes so much "gamier" than what we're used to... often to the negative, I find. I don't like game because it doesn't taste "right" to me. Doesn't it seem like we will only go further down that road with "grown meat"? Won't even the steak we love now taste weird and "gamey" once we eat mainly grown meat?