Oh come on. Weren’t you surprised when you saw tourists in Amsterdam take pictures of parked bicycles? Or to see their horror when the saw raw herring being eaten? Or their disgust when they tasted ‘drop’?
Of course you were, because everything in the Netherlands is normal. For us, not for them. And Chinese culture, food and everything are normal for you as well. Not for the rest of the world.
This is a typical example of responding before you know the whole story. I seem to have missed that you call yourself the ignorant one in the end. Sorry.