I wonder how much is cultural and the power of marketing. With cow’s milk, for example, through brilliant ads, government lobbies, etc., milk became a wholesome symbol of good parenting, even though the idea of monkey’s milk is disgusting.
But lactose intolerance, animal cruelty, the environment, a sense that it wasn’t as healthy as we thought ... have given rise to competition from plant milks that I don’t think the dairy industry can win. Actually I think they are now demonstrably losing.
I didn’t say this about meat before the impossible burger, but now I think real meat’s future is looking smaller, even if lab grown.
Maybe cheese will hang on the longest?