The linked study doesn't seem to support that "ears never stop growing" at least in the typical way one would read that sentence.
> This study supports the view that as people age, their ears get larger, particularly the ear circumference, which increases on average 0.51 mm per year. This enlargement is likely associated with aging changes of collagen
So they do get larger with age but not due to growing, but rather the typical aging of the skin + gravity tends to result in the ears enlarging in diameter.
> This study supports the view that as people age, their ears get larger, particularly the ear circumference, which increases on average 0.51 mm per year. This enlargement is likely associated with aging changes of collagen
So they do get larger with age but not due to growing, but rather the typical aging of the skin + gravity tends to result in the ears enlarging in diameter.