IF a PPL holder has an FI (R) rating, obviously they can't earn money from the flight instruction they give. So effectively you can only volunteer your services.
So is it common for flying schools or flying clubs to actually use a PPL qualified flight instructor?
Would there be any worth in gaining the qualification with just your PPL?
I'm just curious as to how it can be used in a meaningful and proactive way, even in a part time capacity, considering you wouldnt be paid. And i'm having a hard time thinking of many commercially operated flight schools that would take you on.