Comment by commandar

I don't entirely agree there.

In a vacuum for a standalone object, a 3D mesh app like Blender can be useful for brainstorming.

Most of my CAD usage is designing parts that have to fit together with other things. The fixed elements drive the rest of the design. A lot of the work is figuring out "how do I make these two things fit together and be able to move in the ways they need to."

There is still a lot of room for creativity. My workflow is basically "get the basic functionality down as big square blocks, then keep cutting away and refining until you have something that looks like a real product." My designs very rarely end up looking like what they started out as. But the process of getting them down in CAD is exactly what lets me figure out what's actually going to work.

It's a very different workflow, and it's definitely not freeform in the same way as a traditional mesh modeling app, but CAD is for when you have to have those constraints. You can always (and it's not an uncommon pattern) go back and use a mesh modeler to build the industrial design side of things on top once the mechanical modeling is done.

ETA:

I'd also add: I'm not sure "thinking in CAD" comes naturally to anyone; it's a skillset that has to be built.