Humanoid Rig without hands?

Hey! I'm fairly new to unity and I tried to use mechanim for the first time! The problem is that my model is a basic stickman View attachment 124533 . As you can see, it doesn't have any foot or hand, both of which are required for the Humanoid Rig. I don't know if this is why but I have a problem with my walk animation not playing at all if it is not set on the generic animation rig. I want to benefit from the perks of working with the humanoid rig. Any solutions without adding hands and feet...

Humanoid Rig without hands?