New ask Hacker News story: Ask HN: Why are there so few single-letter command line utilities / tools?

Ask HN: Why are there so few single-letter command line utilities / tools?
7 by booboofixer | 18 comments on Hacker News.
Is there a reason for so few single-letter command line utilities? On my macOS, running for char in {A..z}; do type "$char" 2>/dev/null; done gives the following A not found B not found C not found D not found E not found F not found G not found H not found I not found J not found K not found L not found M not found N not found O not found P not found Q not found R not found S not found T not found U not found V not found W is /usr/bin/W X not found Y not found Z not found [ is a shell builtin \ not found ] not found ^ not found _ not found ` not found a not found b not found c not found d not found e not found f not found g not found h not found i not found j not found k not found l not found m not found n not found o not found p not found q not found r is a shell builtin s not found t not found u not found v not found w is /usr/bin/w x not found y not found z not found Single letters are so much easier to type than any other number of letters. Curious if perhaps this was not allowed or was not possible for some reason in the earlier unix / linux days?