Priority proofs of claim need to be carefully monitored in a Chapter 13 case. Make sure one’s filed so it gets paid, and at the right amount.
A bankruptcy trustee would pay your “priority” debts ahead of other debts in an “asset case.” But what happens in a “no asset case”?
Unpaid support is the highest priority of the “priority” debts. Chapter 7 frees up money to pay it. Chapter 13 buys you time to do so.