I will not private message Dutch users.
I will not use the phrase "potato-mouth" anywhere on this website.
I will not complain about tulip bulb prices.
I will stop reporting every comment made by Dutch users as "dutch wrecker."
I will not refer to the Netherlands as Flatville.
I'm sorry.
Depends. The reformed Christians, our evangelicals so to speak, may skip it entirely. Muslims may skip both.
But generally it's up to the individuals for what they do for Christmas, and Sinterklaas is only celebrated if you have kids. Adults don't bother with it.