I’d say we’ve already partly lost separate then/than. It’s sort of like how you can sometimes tell second-language speakers of a language because their grammar is much more precise than a native speaker’s would be (I have a vague notion that native French speakers tend to use third person plural where the textbooks inform French learners to use first person plural, but I’m too lazy to open another tab and google for the sake of an HN comment).

You can tell second-language speakers because they know when to use "its" and "it's".