I hate when people make a big deal out of this. They act like its so silly.
People have no GD clue how much more convenient and cost effective they really are. You can pretty much remove the need for TP damn near entirely. Clean 2-3 times as well in a third of the time.
I agree with TC. But the thing is, I lived most of my life without one and I didn't realize how barbaric it is. It's really just about making life simpler!