Interestingly enough, I am over 30, and my day job is to both write new React code, new modern php code, and to maintain some "classic" php code that intermingles logic, SQL, HTML, CSS, and javascript in one horrible disaster.

So I think I can say with some confidence that everything you have written is completely nonsense.

> It is amazing how much react resembles php and classic asp from 15 years ago.

Yes, it's amazing how it's nothing at all alike.