A question regarding protein.

Idk if this kind of post is allowed or not so I will apologize just in case.

I was wondering can I take protein without working out. I want to feed my protein less family some protein like food pharmers protein and was wondering if you need to regularly exercise or not.

Also how just I add protein to there diet. Can it be added in daal, sabzi, atta and survived heat.

Also how much should be added for an family of 4 on the Overweight/ fat scale.

My family member don't have enough time to exercise hence my question.