I told my sweetie the same thing last night, but I was having a hard time making him understand why it had to be someone young who did this.
He finally understood that the person who did this likely has no experience using a typewriter, and probably has only ever used a word processor. When I explained the superscript "th" and how Word autocorrects it (and showed him on my own computer), I swear you could see the light bulb come on over his head.
Oh, just reminded myself ...
The other thing that I had to explain was how if you take a document and make a copy, then copy the copy (and so on for a few generations), that the quality of the document degrades (looks dirty and the letters get blurred and stretched, the document itself starts to look like it was typed crooked, etc.).
He had no idea that that would happen.
It was funny - he said, "How do you know all of this stuff?" I told him I was a secretary/assistant for ten years - how many dozens of documents did he suppose I had to "correct" retroactively during that time? He laughed, but now he believes that the documents are faked.