There are a number of advantages to bankruptcy including:
It can remove the uncertainty and anxiety caused by negotiating with a large number of creditors simultaneously.
There can be a sense of relief for the debtor.
The client usually pays less; if any payments are made they will take the form of one payment to the trustee rather than individual payments to creditors.
It can be a fresh start: the process is intended to rehabilitate the debtor.
Creditors have to accept the situation and contact with the debtor will slop; most creditors will be unable to take further action against the debtor.
The process is certain.
After discharge most debts are written off and can no longer be pursued by creditors.