[mxscho]

This is also my experience. It's always that projects grow large in terms of people working on them and that is when you want to create independence between teams by reducing the amount of cooperation needed on a very defined boundary/interface between them.

Usually you start small and grow bigger, so there is only rare exceptions where it makes sense to merge microservices back into a monolith, except maybe for cases where going for a microservice architecture was a bad decision taken without actually having the above mentioned problem.