Ten years ago, $10 can buy a lunch at McDonald’s for a family of three (couple plus one kid).
Five years ago, $15 buy a lunch at McDonald’s for a family of four (couple plus two kids).
Yesterday, I would need $25 to buy a lunch at McDonald’s for a family of five (couple plus three kids).
However, during the past ten years, my income only increases about 30%.
The most important factor of a purchasing power is not based off inflation but your own kids. The purchasing power goes down dramatically as the kids grow up. I can’t image what my life will be if they choose to go to college.