You may have lived in Switzerland for 10 years, but by your own account, it seems like you've chosen not to adopt Swiss culture (at least this particular aspect). Culture emerges to facilitate communication with shared expectations; how can you be surprised that people will have difficulty communicating with you if you choose to disregard their communication norms, which you seeem very aware of? To me that feels like some person A complaining that he's lived in Germany for 10 years and is saddened that the average person has trouble understanding person A when he speaks Chinese.