Not only idiots. They bank on laziness. One time you enable something by mistake then you might not spend the time to find the well hidden option to disable it.
Which reminds me, anyone know the precise location where one would disable Google's Gemini on their account?
> They bank on laziness.
And they would be correct. Less than 5% of users change defaults. That's why features get shoved in, on by default because if they didn't, very few would ever enable them. Not defending the practice, I hate it, but that's why they do it.