People don't care about privacy. I find this kind of thought process philosophically unsound. People might not care about privacy enough today -- that doesn't

People don't care about privacy. I find this kind of thought process philosophically unsound. People might not care about privacy enough today -- that doesn't mean that software developers should follow them off the cliff. At some level, programmers have a moral imperative to guide users into doing things that are better for them. That includes ensuring privacy, even at the cost of a slightly more involved UX. Also, people who know or care about sync keys also know how to use private browsing. I don't use private browsing because I'm the only one who uses my devices, so I don't care about the contents of my history. I do care about Google knowing about it though, which is why I use Firefox.