I once asked an elder about the ban on beards and facial hair (with the exception of moustaches) and he told me that they wanted to separate themselves as much as possible from the counter culture movement of the 60's and 70's.
I also asked. I got the answer that as representatives of Jehovah's Earthly Organization we wouldn't do anything to bring attention to ourselves, but to the organization. He then went on to list a couple of large US companies that have/had strict grooming policies. No facial hair, no long hair for men, no exposed tats/piercings for men. Women had strict dress codes as far as dress and being modest. Just as those employees represented that company and the company didn't want bad representation, then "we" wouldn't want to do anything to misrepresent the organization.
That's when it hit me. We weren't Christians. We weren't following Jesus and spreading a gospel. We were unpaid employees for a publishing company. And they had us fooled into following their company policies as if it were a command from God.
With apologies to Kris Kristoferson and Janis Joplin... Christian Freedom is just another word for nothing allowed to do