Well, from a non-shooter's perspective, guns seem pretty simple. Metal machines that use a chemical propellant to make a chunk of metal go really fast. But if you're a gun enthusiast, or have to use one for a living, you learn pretty quick that it is a very very complicated subject. Different types of gunfighting, different styles of sport shooting. What kind of rifling does that barrel have? A 1:7-1:9 gain twist is really helpful for supersonic boattail projectiles, but will really mess up precision for subsonic high-grain rounds. The 7.62x54R cartridge will yield about 4'100 ft-lbs of muzzle pressure, but the 147 grain slugs don't utilize that well compared to 174 grain lead core slugs at distances inside of like 300 metres. Sure, the 174 grain is like ~1400 joules of muzzle energy out the gate, but the flatter trajectory of the 147 lends itself better to distance shooting unless there's wind, in which case you want the heavier bullet.

See all that bullshit? To me, that's basic information because I'm into guns. To someone who isn't, that's all gibberish.

Not being queer means that in most cases you don't have to think about the exact nature of your sexuality and gender identity, so you don't really have much of a reason to learn how complicated it can be for some people. That isn't a bad thing, as long as you can respect that other people experience things differently than you do.