The actual reason. Because C++ is an ancient language based off an even more ancient language. They were made for a time when a computer didn't have the resources for a compiler to parse all of an apps code and do something meaningful with it. Why the fuck do you think the syntax is case sensitive. All those extra instructions incurred by the parser when reading a character to make them all lower case to the compiler (or upper if you are a fag) would be a performance nightmare. I mean its obvious that value and Value and VaLue are completley different entities in the same scope. VERY OBVIOUS! Also, the lazy ass holes who shit that would would have had to take 10 minutes and actually write those instructions in ASM.
Those self gratified nig-tards loved C so much the first C full compiler was written in C.