I am not clear on why one would want to substitute a soy product for a dairy product - as mentioned in another thread soy chocolate milk, for instance. I can see it in the case of lactose intolerance, but why else?
I like milk and I use either 1% or reconstituted non-fat dry milk. I notice that I don't consume nearly as much milk when I am not eating cookies, cake and peanut butter sandwiches all the time.
So, as a moderate milk drinker, should I consider switching? This sounds like a political question .