Left Handed Units?

[Oleander Ardens]

Well only right is right and left is best left because truly harmful is dexterity in sinister hands...

[PBI]

It makes sense, giving the period. Men were organized by height, regiments had specific types of facial hair (straight mustaches, downturned mustaches, upturned mustaches...the list goes on.), and, in general, the goal was to make everybody in a specific unit look as much like each other as possible within the professional armies.

I personally very much hope that some of the more outlandish facial hair types will be researcheable high-end technologies, giving units the "scares enemies" ability. I know for a fact I would think twice before engaging a formation of men sporting full-blown mutton chops.

[Fisherking]

Left-handedness is caused by a higher testosterone level…hence the girly-men’s attempt at suppressing it.

You would likely only find left-handed guns among rifle militia where aiming is important and they brought their own!

And I agree that mutton chops are scary! But there were other scary styles in this era…or just after it actually…I remember an incident of someone being shunned because he sported a beard just after the War of 1812...so that could be a predigest too.