I kind of understand the logic by not serving 20oz and saying "pint". Customers might avoid a place because their "pints are more expensive", when in reality that place is also serving them 4oz of extra beer. A bit like the classic 1/3 lb cheeseburger being "smaller"[1].

Annoyingly, I do find that servers will often refer to their larger size beer as "pint" regardless of whatever the menu says.

[1]: https://en.wikipedia.org/wiki/Third-pound_burger#Marketing_f...

- 200ml "fluitje" (little flute)

- 250ml "pintje" (little pint), often sold in a "vaasje" (vase, a tapered beer glass). This is the typical beer measure: https://nl.wikipedia.org/wiki/Pintje "Het bestelde glas pils heeft doorgaans een inhoud van 25 cl"

They also sell standard bottled beer in 300ml and standard cans in 330ml: https://nl.wikipedia.org/wiki/Standaardglas

I was not aware that 500ml was usual for the Netherlands. It is usual in, say, Germany, where they also sell the 1 litre Maß

That's seems to be the norm in a lot of mainland Europe.

https://www.youtube.com/watch?v=JYqfVE-fykk

Personally I'd have us use what the Royal Navy used to serve its rum ration in, the half-gill. This is 1/8 of a British pint or 71 millilitres, and the rum would have been a minimum of 54%!

Fractional gills were the pre-metric shot measure in the UK, but they were still pretty stingy. 1/6 gill in England, 1/5 or 1/4 gill in Scotland, and 1/4 gill in Northern Ireland.