I've noticed clones of various characters always come out of their cloning cylinders with no facial (yet often have hair on their head). Why is that?
For example Cylo in the recent Darth Vader comics sports a goatee, but when his clones emerge they are beardless. Likewise in Legends, when Palpatine clones emerge from stasis, they also have no facial hair. The clone troopers are special case as they are taken out of their cylinders before they reach adulthood for combat training (as seen in AOTC) and most males don't start growing facial hair as children (in my experience).
I know their DNA isn't changed because such clones have been shown to grow hair later on. And it's not like someone takes them out once a week just to shave them and shove them back in the cylinders (that sounds terribly inefficient).
So why might they not grow facial hair while they are developing? Disney Canon, EU and speculative answers are all welcome.