Environmental impact: Oat milk happens to be very environmentally friendly. It produces relatively few greenhouse gases — second to almond milk — and uses up one-eighth the amount of water that the latter uses.
Taste: Oat milk is by far the best-tasting of the plant-based milks. It has a similar consistency to dairy milk, making it the most viable alternative in home cooking and in coffee shops. Baristas already love it. And since oat milk is not nut-based or soy-based and oats are gluten-free, it contains very little that people are allergic to or unable to digest.
But, you may ask, if our goal is to mimic dairy milk, then why not just keep drinking dairy milk?