The microservice architecture is a new way to think about structuring applications At the beginning, when you begin creating a system and it's relatively small, there will probably be no need to use the microservices approach. Of course, it's nothing wrong with the basic web application. When doing basic web applications for the people in your office, going with the microservice architecture may be overkill. On the other hand, if you plan to develop a new, super internet service that will be used by millions of mobile clients, I would consider going with microservices from the start. Joking aside, you get the picture, always try to pick the best tool for the job. In the end, the goal is to provide business value.
However, you should keep in mind the whole picture of your system after some time. If your application is growing...