Why would anyone want that? If Apple pushed out iOS 26 to the iPhone 6 (or even 8), it would look like a slideshow and everyone would scream "planned obsolescence". As opposed to now where it still works fine on iOS 15 or whatever.
Though I guess if they did like Google and updated a lot of OS components through the App Store (which I agree they should) then you could have security updates for most stuff without major UI updates that slow you down, that would be cool.
Though I guess if they did like Google and updated a lot of OS components through the App Store (which I agree they should) then you could have security updates for most stuff without major UI updates that slow you down, that would be cool.