And you’re right to do so.
Back in the day there were three camps; unix geeks, who never capitalized anything, mainframers, who just as obsessively capitalized everything, and the DEC guys (us in the PDP and later VAX world) who wrote proper fscking English like humans beings. If you change case due to grammatical rules, your CLI needs to be case-insensitive.
The mainframers and unix geeks ganged up on us and won. The only victory we managed was on the hostnames, because we literally could not support case-senstive hostnames in DECnet et al.