I will try to weigh in, since I know it from my own experience.
Any attempt of growing facial hair would look, at best, pathetic on me, my beard hairs, while tough and abundant, tending to grow asymmetrically and also leaving a quite extensive "bald patch" right under my chin. Plus I like being clean-shaved for a series of reasons: youthful aspect, liking for the morning ritual of shaving, more contact surface/better accessibility for male grooming products, a more "neutral" look in a pleasant way (more unassuming, yet easier to accessorize with anything) and quite a few other motives not coming to my mind right now, yet also being there in my mind while enjoying the clean-shaved option.