I don’t know if anyone remembers the movie Inside Man where at the beginning they are waiting in line at the bank and the woman is having a loud conversation on her phone and the guard comes and tells here to keep it down. It’s this kind of person that I see not using speakers (when the movie was made I don’t think they contemplated humanity could sink that low), at best it’s entitlement, but I still think in most cases it boils down to not thinking about others vs actively trying to annoy them.