> The height difference for a child aged 3 y consuming 3 cups noncow milk/d relative to 3 cups cow milk/d was 1.5 cm (95% CI: 0.8, 2.0 cm).

We're talking about 1.5cm here. I guess if you're training your kid to be an olympic athlete then stick to cow's milk, but they'll be fine in the general sense with an similarly nutritious alternative. Lactose-intolerant kids aren't horrifically short or malnourished.

There's a general fear that cow's milk is some sort of necessity (as instilled by the dairy lobby), but it's not. The outcomes are negligible given an otherwise normal diet.