The useful idea
A monolith is not automatically bad, and microservices are not automatically modern. The right architecture depends on team size, domain boundaries, deployment needs, and how much operational complexity the organization can handle.
A better way to decide
- Choose a monolith when the product is still learning and simplicity matters.
- Consider services when team boundaries, scaling needs, or release independence create real pressure.
- Do not split a system before you understand the domain seams and ownership model.