In my parish the hand holding goes to extremes. The people form hand holding chains that cross the aisles and go front to back. It seems more appropriate to a kindergarten class than a religious service.
I call that the daisy chain. They literally turn around in the pews and turn their backs on the altar to get to someone behind them. Or the more respectful folks will stick their hands over their own shoulders and kind of lean back.
But it's not their fault because they really don't know any better. It's the pastor's fault, and sometimes even the bishop's fault.
That and standing after Holy Communion until all have received and father sits down drives me CRAZY!! You have just received GOD and you have to STAND???