Because it doesn't have any empirical backing, has poor predictability, poor reliability, poor reproducibility, etc. It's fundamentally not scientific and was m

Because it doesn't have any empirical backing, has poor predictability, poor reliability, poor reproducibility, etc. It's fundamentally not scientific and was made up by a pair of laypeople. See this article for a summary of the criticisms: https://www.vox.com/2014/7/15/5881947/myers-briggs-personality-test-meaningless https://www.vox.com/2014/7/15/5881947/myers-briggs-personali...