Re:TSV Utilities: Command line tools for large, tabular data...
by PeterisP on Sunday September 01, 2019 @04:33AM
(#20851173)
All of "upper ascii half" can occur in ordinary text in "pre-Unicode" encodings.
0xFE is a good example - you may get a customer or employee from Iceland with that character in their name (e.g. https://en.wikipedia.org/wiki/Haf%C3%BE%C3%B3r_J%C3%BAl%C3%A...), or data in cyrillic cp1251 or koi8-r enconding where 0xFE also represents characters that you'll encounter in surnames, etc.
Anyway, these character are presumably not going to occur in ordinary text.