I never understood the falsification with case insensitive languages, to me it was yet another way to trip up a team effort let alone working with many related

I never understood the falsification with case insensitive languages, to me it was yet another way to trip up a team effort let alone working with many related sources. however my view is jaded by working mostly on minis and our languages were always this way. the focus was on concise naming and logic and to me just adding another method for a typo to nail me does not benefit a language. so can someone tell me the reason why?