Growing up one of Jehovah's Witnesses, I don't think there are some things we have given a lot of thought to. We knew you couldn't have a beard, we knew it was "worldly", but of course we never knew why. It certainly wasn't based on the Bible. Imagine trying to say the requirement's for beards was part of the Mosaic Law Covenant", that Jehovah God required his people to wear beards, but now in our modern age, Jehovah now hates beards! Yet "Jehovah never changes."
To remain within actual Bible context and consistency, at best you would have to say beards are a conscience matter. However, you could argue with way more Biblical authority, that a beard, which clearly distinguishes men from woman, would continue to be something not only approved of by God, but preferred. Now with the transgender movement gaining more and more support, it becomes even more evident, the prohibition on beards is neither Biblical, which we all know, but the lack of a beard would have been and was historically considered by Jehovah to be worldly. Not the other way around.
So the real question that anyone should ask, is why the prohibition on beards? Ask any JW, and they will tell you "because it is worldly." But why is it worldly, and why in every single drama, do they wear FAKE BEARDS, when they dress up like the men who were actually inspired by God's Holy Spirit to write the Bible?
What's the reason for the prohibition? Well all you have to do to find out, is look it up in the Bible....oh wait, I mean in the WT publications. And if you ever ask that question, elders will line up down the block, with printed materiel from WT publications, mostly if not all published in the 1970's about how beards are worldly. Worldly according to who? WT!
While we're on the subject, why no prohibition on woman shaving their legs and arm pits?
Also ask any JW why beards are worldly? And when they stumble around for an answer ask why the brothers who portray Jesus Christ in Dramas for example have to wear a fake beard.
The blatant ludicrous hypocrisy is so inconsistent it's hard to believe anyone has gone along with this!
So how do we know beards are worldly? Because the F&D,S say so. And how do we know they are the F& D. S. Same reason, because they say so! And we have proof, just ask them!