COBOL was created to serve the interests of the financial industry, therefore COBOL has fixed point as a first class data type.
Every programming language that has come since has been designed to be a general purpose programming language, therefore they don't include fixed point as a first class data type.
Therefore the financial industry continues to use COBOL.
Every time someone some tries to rewrite some crusty COBOL thing in the language de jure, they'll inevitably fuck up the rounding somewhere. The financial industry has complicated rounding rules. Or better yet, the reference implementation is buggy and the new version is right, but since the answers are different it's not accepted.
Every programming language that has come since has been designed to be a general purpose programming language, therefore they don't include fixed point as a first class data type.
Therefore the financial industry continues to use COBOL.
Every time someone some tries to rewrite some crusty COBOL thing in the language de jure, they'll inevitably fuck up the rounding somewhere. The financial industry has complicated rounding rules. Or better yet, the reference implementation is buggy and the new version is right, but since the answers are different it's not accepted.