I prefer plant-based milk over dairy, it tastes better and it lasts longer. I tried plant based milk years ago and never went back. I've tried cashew, macadamia, rice, soy, almond, coconut, oat, and sunflower. Some of my favorites are vanilla almond, dark chocolate almond and cashew, vanilla macadamia, and vanilla coconut. My family still buys dairy milk, but we always bought plant-based butter. I buy cream cheese to use as bread spread.
There is zero reason to drink milk past infancy. Plant based milks suck for cooking.
Edit:
That came across wrong. If you like drinking milk, so be it. There used to be a big push that you need to drink milk. Some of it by the dairy lobby, but also the food pyramid thing. Milk is dense nutritionally, yes, but we don't have a need to drink it, was the point I was trying to say. I know that isn't pushed as much today, but I was definitely a generation raised being told that you must drink milk, it's a necessity.
Most people prefer the taste and it's often more calorically dense? And yeah, plant based sucks for cooking. I mostly use milk products (half and half, cream) in cooking, and plant based is not it for cooking.
I'm a pretty devout meat eater, I will 10000% give up eating meat before giving up dairy. Also, fwiw, we do need to eat less meat and use fewer animal products, but lets not gaslight ourselves about it.
There are plant milks and creams for cooking purposes. As for the taste, if you feel plant milks have overpowering taste, you can mix multiple different types. For example, when we have made white sauce for lasagna, we use soy-, oat- and almond milk.
I haven't used dairy in a long time, so I can't think of anything where plant based products couldn't be used as a reasonable replacement (apart from cheese, there the options are severely lacking)
Have you tried Miyoko's Creamery brand cheese? Some of the best vegan cheese I've ever had. Also, if you haven't tried vegan cheese in some years, you might be surprised how much better these companies have gotten at the taste and texture.