While frozen milk will taste more like fresh, it takes up a lot of space in the freezer. It costs money and energy to keep it frozen. Canning milk is one way to preserve your milk and save energy at the same time.
Early in life, I had become familiar with yogurt dishes on our homestead on the western prairies of Canada. However, during that era of my life it was not my favorite food. That was to come later, when I gained wisdom.