DEAR ABBY: When we’re out as a family, my 30-year-old, millionaire son never pays for anything. He eats more than any of us and never reaches for his wallet, not even to help with the tip. This has been going on for years, and my wife always defends him. I have given up trying to fix it.

I’m writing because my son never fails to criticize the amount of the tip I do leave. I generally leave something in the 15% to 18% range, which he finds offensive. He works in the hospitality industry and insists that 20% is minimum. When I invite him to supplement the tip, he says, “If you don’t want to tip appropriately, you shouldn’t go out to eat.”

Write to Dear Abby at www.DearAbby.com or P.O. Box 69440, Los Angeles, CA 90069.