I'm sympathetic. Apologetic, even. I can sadly see an easy way to read the tone of my reply as overly condescending. But, to counter with the assumption that I have limited experience with kids is not helping the discourse.

It was specifically the use of the words "guilty" and "whining" that struck me as wrong there. I could see wanting to avoid seeing disappointment. But I don't consider that guilt. And I'm pretty strict on my kids when they start whining.