I think it's more about facial and cranial structure than height and build. Do you really want to look like Vin Douchebagel anyway?
I used to do it during my late teens and liked it, but eventually it became a chore and I disliked knicking my head. I'm reminded of my barber's words of wisdom: we can take it off, but putting it back on is the hard part. Why not wait to see what the dermatologist says?