Similarly if you don’t like the terms of the App Store you could have the option to purchase an open iOS v.1X and install whichever store you please. The only difference would be that you would need to pay again for subsequent versions of the OS, just like ppl would pay to update windows from XP to Vista to 7, etc.
Also a pretty false equivalence, though.
Windows 7 was a paid upgrade from Windows XP.
iOS 13 was a free upgrade from iOS 12.
Devices that shipped with iOS 10 got 11, 12, 13, and 14 for free.
(Some/many/most/all) will probably continue getting future iOS versions for free.
The original comment was that Apple should charge for iOS versions, to which I was saying that is a bad idea. By your comment, (I think), you would agree with my statement.