Weird fact about Chile and Argentina

Every time I go to the supermarket in Chile or Argentina there´s one thing that always mystifies me.  Just why, in a couple of countries that love beef and dairy products so much, is there never any fresh milk in the supermarket??????????  Especially since there is so much cheese and yoghurt in the fridge?  I just refuse to buy longlife milk in a country where the electricity is actually reliable.  It just seems wrong.

No matter how hard I try, I can´t come up with any plausible reason for the lack of fresh milk.  Hmmmm.....