I'd heard of a "Jack & Jill" before but thought the term just referred to a bridal-style shower for both men and women.
Same here! In all my time planning our wedding (had a 2+ year engagement, ugh) I only heard of the type described
here
. I can't help but that that, like the change of meaning of the word "babymoon" (originally used to describe the time AFTER baby comes when friends/family are kept away so the mom and dad and brothers/sisters can all moon over the baby...now somehow being meant as getting away BEFORE baby comes (which isn't really getting away from baby at all)), this is a change in meaning by people who just want to get money.
I wouldn't assume that any future Jack and Jill invites will mean this...
This is even more tacky than a dollar dance.
I would never have had a money dance, but in the one wedding that I attended where they had it, EVERYONE loved it...the guests would have rebelled if they hadn't done it! Totally cultural thing on both sides...bride was Minnesotan where they grew up with money dances, groom was Mexican and grew up with money dances...they would have had one even if they didn't intend to have one, b/c some people brought their OWN pins to pin the money on her gown!
There are heavy cultural things, and as long as those things are done inside of that culture, all is well. But when you change the tradition, or the meaning, or take something outside of the culture (like...describing some midwestern weddings where guests might get separate invites to the ceremony, the dinner, and the dance is very hard!), then things seem tacky.
But I absolutely do think that the OP's received invite is tacky, but I don't think it was the original meaning of a J&J party.