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Polish Wedding March & Funny Hat [37]
If the attendees indeed have good wishes, sure, and if the couple thinks this is a fun thing to do, sure. But don't do it unless you want to, I guess that's one point. And the other is don't assume that just because someone is being a good sport that means that they think it's a great thing. And anyone who thinks they should go along with this out of respect for Polish cultural tradition should be aware that it's not a real Polish tradition.
I personally found it humiliating, my family found it scandalous, and I can assure you that people who insisted on it did not do so from good wishes towards anyone but themselves.
Depends on the situation.