In some cases, it will make sense to consider converting a Chapter 13 case to a Case under Chapter 7. The first question that needs to be answered is whether you are eligible to proceed under Chapter 7 by converting your case. You must verify that it was over eight (8) years since the filing date of a prior Ch 7 (where you received a Discharge) from the filing date of the Chapter 13 case. If it was less than eight (8) years, then you need to look at whether you can file a motion to dismiss the Chapter 13 and then file Chapter 7. Filing a new case will reset the bankruptcy "look-back" period which determines whether you can convert to or dismiss the Ch 13 and file under Chapter 7.
The advantage of converting to Chapter 7 from Chapter 13 is that you will only have to pay an additional $25.00 filing fee. Additionally, you are not required to re-qualify under the bankruptcy Means Test. Your income and expense schedules should show a change in circumstances where your income is now a little bit less (at least) than your household expenses. The Bankruptcy Court needs to see evidence that you can no longer afford the Chapter 13 Plan payments.
Another consideration before you convert to Chapter 7 from Chapter 13 is whether you are paying off a vehicle loan inside your Chapter 13 Plan. Converting to Chapter 7 will cause the auto loan to, in most cases, go into default status because the loan was stretched out in the Chapter 13 Plan, most likely at a lowered interest rate. In many Chapter 13 Plans, the loan can be "crammed down," meaning only the fair market value of the vehicle is considered a higher priority secured debt (which must get paid, with interest).
Converting to Chapter 7 from Chapter 13 is not automatic. You should always discuss the options available with your attorneys before making any moves on your case.