Why would it hurt the low barrier group? PHP is designed that you can use the functionality you need and sub functionality to a functionality is usually also o

Why would it hurt the low barrier group? PHP is designed that you can use the functionality you need and sub functionality to a functionality is usually also optional, e.g. you can use functions if needed and with functions you can have typed input parameters if you like, in many ways similar to TypeScript, you expand as you go. There is nothing in PHP that forces you to code in a certain style, like in other languages, it is truly multi paradigm. Why can’t you be a competent programmer that codes in PHP and also understands ADT? Where is that defined?