Oh really?
In the late 90’s I was waiting for my car at a carwash, and a very old geezer sat down next to me and struck up a conversation. I told him I worked in the computer industry.
“Computers? Oh, I learned how to use one at the senior citizen center.” (“Here we go,” I thought).
Then he explained that he was the secretary of the Pearl Harbor Survivors Association, and they couldn’t afford their quarterly mailing expenses. He found out that if he sorted the letters by zip code and printed the mailing labels with a zip+4 code and bar code, the Post Office would charge him half the price.
So he created a database of his mailing list and then he ran it against a database he’d bought of zip+4 zip codes and bar codes, then sorted the print output by zip code and printed the mailing labels.
The man survived Pearl Harbor, the rest of WW II and he could probably kick both our butts at any computer-related endeavor he set his mind to. So don’t underestimate an old geezer. You just never know.