Earlier quoted context omitted.
I just think you're damaging your kids by not giving them milk, which is the most nutritious thing you can feed a kid. Also, your kids may be lactose intolerant due to other stuff in their diet, like gluten or other toxins in plant-based foods that lead to a leaky gut.
If milk is so good, keep them on Mother's milk.
(Ref: 'Little Britain') https://youtu.be/FmD2Y6WxpIw?t=61