That's basically the role of frameworks. Any web application I build is going to need at least some subset of functionality common to all web applications, and

That's basically the role of frameworks. Any web application I build is going to need at least some subset of functionality common to all web applications, and implementing everything from first principles is absurd, so I use a framework. Someone else building something completely different with the same language doesn't need those things, so cooking my needs into the language itself is just going to add overhead or force unwanted design choices on to them, but there's probably a different framework for whatever they're doing too.