Native speakers can’t be ‘proven wrong’ in their use of the language
I’d say they can, withing limits—they can recognize that certain ways of saying things “feel wrong”, and you’ll rarely find speakers of the same dialect disagreeing over whether a sentence “feels wrong” (though there are probably some border cases).
I’d say they can, withing limits—they can recognize that certain ways of saying things “feel wrong”, and you’ll rarely find speakers of the same dialect disagreeing over whether a sentence “feels wrong” (though there are probably some border cases).