i think it would be cooler if there were better character animations just cause its wierd, you never move your arms in a different way unless your using a weapon.
Scripting does it. You can make the player's arms move like ragdolls in your place, if you make or use that kind of script.
At least, ROBLOX's character animations are better than MC's, and that you can script your animations.
~AoiChan~