What exactly does “The Chinese language” mean? Does it mean Mandarin, or are other langs like Cantonese, Hakka, and Teochew included?
without being familiar with the linguistic landscape in France that sounds like a fair comparison. contrary to what a lot of Western chauvinists love to claim, linguistic diversity is quite celebrated in China. One such example I am familiar with is the effort to try and revitalise 上海话 in the last decade or so. Although of course I’m sure there has been erosion of some dialects as well, an unfortunate aspect of nation building, increasing education, and creating economic opportunity for people throughout the nation is that some small dialects will become less useful for younger generations with internal migration and so forth.
When first considering learning Chinese, “Shanghainese” caught my interest, because apparently they only use two tones? Tones didn’t turn out to be so bad. That is cool it is being promoted.
https://www.youtube.com/watch?v=PNSWuNuOwRk This is a really interesting talk about the topic. Unfortunately no English subtitles but suitable for an intermediate learner. Also the powerpoint slides have English so that’s useful. Speaker is Nathan Rao of the Teatime Chinese podcast. A great podcast for listening practice!
Just to add some more info from a nearby city to Shanghai. In Suzhou, schools run programmes for the preservation of the topolect, they also have 苏州话 in some of the busses that go around the city centre. There’s even a Wu language section in the Suzhou library. Of course, with anything in the PRC every municipality will be different, but at least there is some preservation going on.
Though, according to this source (in Chinese) from 2022 only 2.2% of 6 - 20 year-olds can use 苏州话 proficiently.
The author does say they are unclear about how that data was gathered, so it could just be a limited amount of people from the Suzhou area gave a response. Still, from personal experience I don’t think it’s that low, as I’ve had several students (and some colleagues, though that would break the 6 - 20 year-old limit) claim that they spoke 苏州话 with their parents or grandparents.