Mesh renderer does not move with parent rigid body

I have, in my scene, a GameObject with attached 3 walls and a floor. I want these four objects to move with a rigidbody I assign to GameObject. When I do, only the colliders move with:

What’s the correct way to make these mesh renderers move with the rigid body? They are children of the Parent GameObject (the one with the rigidbody).

I already tried attaching a rigidbody to the walls and making them kinematic, but no cigar.

Thanks for your time.

Hi, have you checked that GO is not static.