If you prefer not to drink dairy milk, then just skip milk entirely.
As an aside, we really shouldn’t be eating food created in a lab. We’ve evolved as a species over hundreds of thousands of years to eat real food and we keep trying and failing to outsmart evolution. Trans fats, artificial sweeteners, processed food, and so on.
Better how? Certainly not more nutritious but having some new feature that adds convenience or uniformity. Processing always has side effects, usually discovered decades later. Trans fats, artificial sweeteners, refined grains, the list goes on.