I'd like to have an idea how common it is for people to lose the regional accent they grew up speaking, especially those who still live in the region where they acquired the accent, in whatever language. If so, to what do you attribute the change? Do you see it as an affectation? In the US, some people become self-conscious of a strong regional accent at a certain time in their lives, they may notice that it isn't spoken on national TV, or may go to university in another region and lose their accent in favor of a more "standard" American accent. Some Southerners I know can switch back and forth, they'll switch to a standard accent when speaking to non-Southerners, and then switch to their original accent when speaking to Southerners. I grew up with a fairly strong accent from my native New York City area, but "lost" it (without consciously trying) sometime in adolescence. I can't even imitate one very well, and am sometimes sorry that I can't talk that way again with New Yorkers.