I'm the same way with cow milk usage. I don't drink milk but I occasionally eat small amounts of organic cheese, yogurt, and kefir. I also totally agree with you about probiotics and enzymes. I've been using plant based digestive enzymes for years (I like Enzymedica's product, Digest Gold). I don't take probiotics regularly but I do take them on occasion.
I want to thank you for your sense of humor. I started thinking about which animals are "okay" and which aren't when a client told me that of all mammals, mouse milk is the most similar to human milk. I'd love to find out who came to that conclusion. And was there a taste test involved? How many mice does it take to get enough milk to make a bowl of cereal? It's important questions like these that motivate me.