I guess one factor is that Germans traditionally care deeply about privacy. This is in no small part due to our history of privacy violations, e.g. the state sp

I guess one factor is that Germans traditionally care deeply about privacy. This is in no small part due to our history of privacy violations, e.g. the state spying on its citizens during the Nazi years, but also in Eastern Germany during the country's partition. See the excellent film „The Lives of Others“ for an example of the latter.