What are the examples of systems in which it may make sense to use traditional file processing instead of a database approach?

Traditional file processing may be suitable for simple applications with limited data, such as small-scale inventory systems or personal record-keeping, where the volume of data is manageable and the complexity of queries is low. It can also be advantageous in scenariOS with minimal concurrent access requirements, reducing the need for complex database management systems. Additionally, for embedded systems or applications with strict resource constraints, file processing can provide a lightweight alternative to a full database solution.