Additional context:
Native speakers of my mother tongue do not all understand each other due to some pretty extreme dialects. Now that I’m in Europe, I’ve noticed multiple instances of people sometimes not understand the dialect of someone from a village 10-20 km away…
In contrast, for example most American, British, and Australian people can just… understand each other like that?? I never thought much about it before but it’s pretty incredible
Edit: thanks everyone, and clearly I didn’t think of certain parts of the UK when I was in the shower and thought of this…
Yea I live in the Netherlands and there is a fishing village just a 15 minute bike ride away from me. If the people there speak in their own dialect I can’t understand anything they say. If I drive to the north to the province Friesland, less than 100 km away, they have their own official language besides Dutch that only around 400k speak. That’s less people than half of the inhabitants of Amsterdam yet Frisian is fully recognized and official and you can spend your daily life there without speaking a word Dutch even though you are still in the Netherlands. Some kids there don’t even learn their first Dutch words until they go to school.
That’s kinda was like Guangdong province where I’m from. Mandarin wasn’t used at home, but once school started, it was all Mandarin. Nowadays… I think Mandarin is slowly starting to take over.
It’s why the immigrant parent’s kids who never went to school in China cannot speak Mandarin, I know kids that only speak like Fuzhouese.