It's true that lactose intolerance is quite uncommon in Northern Europe -- to the extent that some even consider it a defect - but most people who'd do that als

It's true that lactose intolerance is quite uncommon in Northern Europe -- to the extent that some even consider it a defect - but most people who'd do that also rarely realise that milk drinking isn't the norm everywhere. Besides, the ability to drink milk developed independently more than once during human history.