Here's why:
* Low milk production: Highland cows produce a relatively small amount of milk compared to dairy breeds like Holstein or Jersey.
* Milk composition: Their milk is also different in composition, with a higher fat content and lower lactose content than dairy milk.
* Not bred for milk: Over generations, Highland cattle have been selectively bred for beef qualities, such as hardiness and meat yield, rather than milk production.
While you might be able to get a small amount of milk from a Highland cow, it's not a reliable or efficient source of milk. It's not practical to keep them for dairy purposes.