I'm not denying this, but I do remember a jug of beer being ordered and me being asked to pour it into several glasses without noticeable markings, and me trying to end up with about a 1/4 inch of head as I would in the UK and my Dutch friends yelling "more head" or something even less than polite.
Mostly in the NL I drink bottled beer. And I'm a Yorkshire man, at least by birth.
Yeah, in the Netherlands 2 finger widths is the norm. But if it's more than that, people will get upset that you're pouring them milk.