Different industries move at a different pace. Many common power plugs were standardized 50-100 years ago. Compared to them, even USB-A is still new. If all yo

Different industries move at a different pace. Many common power plugs were standardized 50-100 years ago. Compared to them, even USB-A is still new. If all you need is power delivery, there is little reason to switch to yet another plug type, which only exists because of unrelated requirements in other industries.