I would love to live in your bubble. Unfortunately, or perhaps fortunately, depends on what point of view you refer to, as freelancer in past 10+ years, real life is quite different.
Discounting someone else’s experience as “not real” and substituting in your own doesn’t make their viewpoint invalid. And to throw in my own, I have never seen case sensitivity be an actual issue that takes more than a couple minutes to resolve.
I've occasionally seen issues with thingId and thingID, but mostly they've been aesthetic or in serialised contexts (json is a swine for this).