You're an adult. Other adults asked you how much you paid for particular items. As an adult, you could have chosen to either respond to their question or say that you'd rather not disclose that info. Additionally, kids are curious, so that's probably why your high school students asked what you paid for (insert item). The poster, on the other hand, asked children how much they paid for particular items. He's the adult in charge; therefore, he should know what is/isn't an appropriate question to ask a kid. Frankly, though, it's none of his business. Plus, most kids have no clue what their parents paid for a particular item. Do you see the difference?