Let's face it: you're not going to be wearing a suit of actual armor on the battlefield. That's just not how it works. Unless you're a medieval reenactor or a cosplayer, in which case go for it.
But seriously, have you considered the logistics? Actual armor is heavy, cumbersome, and requires constant maintenance. And don't even get me started on the safety concerns. You'd think that'd be a no-brainer, but apparently, not so much.
Plus, have you seen the prices of actual armor? It's like buying a private jet for your cat. You'd think they'd at least offer a decent warranty, but nope. You're basically buying a hunk of metal and leather and praying to the armor gods it doesn't break the first time you use it in combat.
All in all, it's just not worth it. So, let's just stick with, you know, actual clothing that's designed for fighting and not, like, actual fighting. Makes a lot more sense, doesn't it?
But hey, if you're still set on using actual armor, I hear there's this one guy on the internet who's got a sweet deal on a used suit of samurai armor. Just don't say I didn't warn you.
Samurai Suit of Shame Actual Fighting Clothing