It’s not a matter of not knowing what it looks like. A horse is hard to draw, really hard, a cat or a dog ain’t that difficult but drawing a proportionate horse isn’t easy , and on repeated slides, different positions and angles ?! Cut them some slacks
Those aren't even drawings. If they're going to use 3D horses, they should use the right ones. Do some research. Also, how hard can it be to draw the reins properly by the mouth?! It just means that they didn't bother to how it supposed to look like. Also, cats and dogs aren't that easy to draw either, than you think. But at least others makes an effort to at least look the part. For others it's just copy & paste (but using the wrong ones)
they draw what's easier to them since their schedule is tight ig besides these are minor details that most people wouldn't care or even pay attention to so they just do whatever lol
Why do I often see in a lot of Manhwa & Manhua, the reins near the ears instead of mouth? Like, don't they ever see one in their life? Plus there were times that it switched between mouth & ears position LOL.
The horses looking weird too so stiff with weird legs