I totally agree with the information you shared. The sad reality is that as the years have passed, even the things we use to serve the food have increased in size. I inherited a set of china from my grandmother (circa 1920s). The dinner plates are the size of the salad plates from my own set (circa 1980s). The wine glasses are much smaller as well.
When I adopted the 9-inch plate rule, it was a HUGE difference in my eating pattern. Half the plate is vegetables, the other half is divided between a protein and a carb.
Thanks for the read!