Because the main character shows a lot of actions as well and not drawing or showing those means you have to use tricks to imply they're there.LateWhiteRabbit wrote: Why is that strange? That's exactly what happens with all the other characters and NPCs in a VN. Why should the MC's sprite show important actions when no other sprite does?
In first person view you already see the other characters do this now and then, but now in third person view, you will see it happen much more. This is because the main character does a lot of actions as well. People can usually understand these things, but tolerance also has a limit, and when things like this happen too often it can become jarring quickly.
Furthermore, in first person view the main character's actions can be hand-waved more easily with a sfx or something, because you're not looking at him directly. As for third person view, you would have to draw a lot more sprites so that you don't use loopholes and tricks for actions too often.
Also, imagine all the interactions you would have to show because of this. In first person view, a hug can be simply expressed by moving the sprite opposite of you closer and giving it a matching expression. In third person view, moving sprites closer to each other to represent a hug just feels more off.
There's another problem; even if you do this, as AxemRed already mentioned, it still means the sprites will be divided into two groups, which might cause some problems (like during an argument between three parties).
My solution would be to overlap the characters, like so:
As if they are standing beside each other. No one is talking to any one else's back that way, and the two groups talking aren't crowded into each other's space.