it WOULD be difficult to go from one grandchild (who's got a temperament you find easy, and who already knows your house rules) to three in a very close age range.

Oh yes, I have sympathy for that, and for finding quiet kids easier than energetic ones. (My nephew is an absolute chaos tornado. He's also bright and creative and quirky and I love him infinitely, but he is NOT low energy.)

But the absolute judgment oozing from this letter is just... *flames*. It's not good for the kids, and doesn't exactly give them motivation to behave better, and just. *wordless flail*