>If local culture is still preserved, taught and celebrated, is a really a problem?
Yes because it won't be really preserved if you don't have speakers who use it as their main language since nothing new will be created, just relics of the past that will slowly be lost.
Most people other than highly-cosmopolitan minorities don't think they should lose their language, which is so deeply tied with how we even process our understanding of the world, by mapping concepts to words, with their culture and identity, just to make it easier for foreigners who can't be bothered to learn the local language.
The problem is that the minority is way more vocal and has more influencing power.
Yes because it won't be really preserved if you don't have speakers who use it as their main language since nothing new will be created, just relics of the past that will slowly be lost.
Most people other than highly-cosmopolitan minorities don't think they should lose their language, which is so deeply tied with how we even process our understanding of the world, by mapping concepts to words, with their culture and identity, just to make it easier for foreigners who can't be bothered to learn the local language.
The problem is that the minority is way more vocal and has more influencing power.