Being from NJ with all my family in NY, I have been to weddings from many different backgrounds, italian catholic, irish catholic, generic, jewish, indian, Baptist, Halloween wedding.... etc. etc and even one a year ago that was with both the bride and the groom from the Bahamas. My husband and I were some of the only people not in traditional island attire. ( Great party, btw). I have never seen a dollar dance in my life. I don't believe it's a catholic tradition, if it is, I have missed it and being quite catholic, I don't think I did. The garter thing is, unfortunately, alive and kicking. Not fond of that one either.