Functionally I think it is fine. I don't know if it meets the code. Others will likely chime in. If you are having an electrician install and a building inspector inspect you need to make sure both of them are ok with it.
Sharing ground wire between two dedicated circuits
Planning to install two dedicated 20amp circuits with Romex 10/3 and 10/2 Cable. The run is about 70 feet. Have learned that the 10/3 as an insulated ground versus 10/2 which has a ground wire but it's not insulated.
Idea has been proposed to share the insulated ground from the 10/3 wire with the other 10/2 dedicated circuit. Achieves the same thing at a lot less cost? Does this make sense?