I'm trying to show you that this is a lorefull rule change if you eree going to give humans a weapon profincy polarms makes the most sense.
It really would not. How polearms are used in combat have very little to do with how farmers use a scythe, which by the by is not by any stretch of anyone's imagination a polearm. And there's no sensible argument that I can think of that being familiar with a scythe somehow teaches you how to use a polearm.
Also keep in mind that a war scythe really isn't a scythe. It is named so because it has a curved blade, like a scythe, and the cutting edge is on the inside of the curve, like a scythe. That's it. You cannot make a reasonable weapon out of a scythe because the blade just isn't made for it. Sure, you could injure people but you'll probably also break the blade or it might get stuck or it might just glance off the first bit of armor it hits.
If humans were to have a basic proficiency, it should probably be basic spears, which I believe is the most common weapon in human history, since it is so simple to make. But even that wouldn't be right, because learning to use a spear properly takes time and effort and investment. It sure isn't something that all people of any society just know how to do.
