It sounds like you've already done a great job instilling the virtues of budgeting and the value of money. I don't think you need to share your salary. If you

It sounds like you've already done a great job instilling the virtues of budgeting and the value of money. I don't think you need to share your salary. If you still had young kids, you could share instead your budgeted amount. Just don't even consider the savings income as being in the picture. I think the strength of the lesson is to go from "wow, that's a lot of money on the table that I can touch," to "wow, almost all of it is gone due to overhead." A secondary lesson is the concept of private information, formation of trust with sensitive sharing, and the harm in gossip.