Issue with child rigidbodies+colliders

Hey guys,

This might seem a n00b issue, but I’ve looked all over the place and I’m out of ideas…

-I have a parent object with a rigidbody. That parent is moved via AddForce on the rigidbody.
-Then I have childs with compound colliders and rigidbodies (when applicable).

My issue is: parent’s movement is not triggering any collisions (static or otherwise). Only if I add a collider to parent, can I trigger anything at all. However, I wanted to move parent with physics and let the children handle all the colliding (specially with static/kinemactic colliders).

So, I’m assuming that static/kinemactic collisions are only triggered by the rigidbody receiving the force, is this correct? Shouldn’t it’s children be included in that movement as well?

And if my assumption is correct, how do I handle all the “passive” (non-scripted) collisions with my parent-child setup? Adding a collider to parent will complicate things and having no parent will be even worst. What is the proper way to approach this?

It seems wasteful having a script to handle all the passive “scenario” collisions, specially when unity does it by itself you have colliders and rigidbodies setup on objects.

I’m running Unity 5.2.2p4.

Thanks in advance for all the help and the time to take a look :wink:

Anyone?