Is it common for users to get marijuana induced depression?

Depends. Forget the statistics; this is a red flag for underlying difficulty. For the individual it is 100%.
Not really. However, as a really good psychiatrist, i always inquire as to any ''discomfort with recreational drugs''. If yes, it is a red flag for an underlying, significant disease. So you make sure ''this friend'' consults a well trained psychiatrist. Tomorrow. Yes, i will know, we are a tight group.