Sadly, I think it already has caught on some places, along with all other kinds of abuses.
Since Lance through out his question on hand holding, and congregants mimicking the Priest's gestures, I'll throw out mine:
Has anyone been to Mass where folks stand for the Consecration?
I was visiting a Church and the Priest actually stopped saying the Mass, and said out loud to me, "You don't have to kneel for the Consecration."
To which I replied, "Oh, I can lay prostrate, if you prefer."
He put up his hands, and shook his head back and forth, and said, "No, no, that's all right."
Yes, I was stunned. I knelt, but that is just me.
I think we may be related, sockmonkey. ;)