@antedeluvian interesting, yes, some men do use handshakes as regular greeting, and in some more casual contexts that turns into slaps on the back, etc. As for the son shaking his mother's hand, that's an interesting one. We'd have to do some research to ascertain if that is indeed a Swiss custom or unique to this particular family.
@Antedeluvian: The residents at my mom's retirement village [...] employ the elbow bump.
Well -- I learn something new every day -- I just Googled this myself (you aren't the only one who knows how to Google LOL) -- according to this Wikipedia page, "An early popularization of the elbow bump began outside the Kalaupapa Leprosy Settlement in 1969..."
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