Do we have any evidence that most users just click yes?
My parents who are non-technical click no by default to everything, sometimes they ask for my assistance when something doesn't work and often it's because they denied some permission that is essential for an app to work e.g. maybe they denied access to the microphone to an audio call app.
Unless we have statistics, I don't think we can make assumptions.
The amount of "malware" infections I've responded to over the years that involved browser push notifications to Windows desktops is completely absurd. Chrome and Edge clearly ask for permissions to enable a browser push.
The moment a user gets this permissions request, as far as I can tell they will hit approve 100% of the time. We have one office where the staff have complained that it's impossible to look at astrology websites without committing to desktop popups selling McAfee. Which implies those staff, having been trained to hit "no", believe it's impossible to do.
(yes, we can disable with a GPO, which I heavily promote, but that org has political problems).
As a counter example, I think all these dialogs are annoying as hell and click yes to almost everything. If I’m installing the app I have pre-vetted it to ensure it’s marginally trustworthy.
I have no statistics but I wouldn't consider older parents the typical case here. My parents never click yes on anything but my young colleagues in non engineering roles in my office do. And I'd say even a decent % of the engineering colleagues do too - especially the vibe coders. And they all spend a lot more time on they computer then my parents.
Interesting parallel between the older-parents who (may have finally learned to) deny and young folks, supposed digital-natives a majority of which who don’t really understand how computers work.