I wouldn't want any man to shake my wife's hand. I don't know about you people. Don't you feel jealous when another man touches your wife. If so you're no different from a cuckold.
How about your wife meeting another man and during introduction and every time after, hugs each other. Would that be ok with you?
If you say it's not appropriate, the westerner will call you backwards, insecure, primitive etc.
How about the man hugs your wife and pulls her in tight, then plants a kiss on the cheeks. Would that be ok to you or are you still not evolved from a homo habilis?