I absolutely still remember my grandfather having a dual 5.25” IBM and teaching my 6-7 yo self how to use the cli. I still remember that MSDOS 2.0 box he had up on his shelf, and how he taught me to keep a simple text file of the prices of my baseball cards, according to the legendary Beckett price guide.

I then later vaguely messing around with 3.11 followed by 95+, but the basis of my mediocre understanding of the cli was due to my grandfather teaching me on DOS 2.0.