A company has the right to tell you how to dress and how to look as long as you elect to continue working for them.
And yes, not having a beard can affect how you look off the clock in your personal life.
You do not have to continue working for UPS and then you can grow a beard as long as you want, unless you elect to work for another company that forbids beards.
I was wondering how long before someone let loose this fallacy.
Ergo decedo - Wikipedia
I am not arguing that the company doesn't have the right. I am arguing that they shouldn't. I will also assert that the only reason you, and the others who agree with you, affirm the company's illegitimate right is because you agree with their decision on this matter.
According to your reasoning, the company also has the right to forbid
all facial hair, I think we can agree to that point. What about requiring shaving eyebrows? How about shaving off all your hair? How about that standard for women as well? What about no glasses, 'cause glasses are for nerds, only contact lenses? What about requiring everyone to have straight teeth, and they must get braces if their teeth aren't straight enough? What about required tooth whitening? What about required tanning?
Where exactly is the line? What is ok and not ok for the company to require for appearance standards? And why?