I'm coming from the serverless side of things where people always say that only a few companies on earth even need K8s, like cloud providers. How do you ration

I'm coming from the serverless side of things where people always say that only a few companies on earth even need K8s, like cloud providers. How do you rationalize using it in your company? For example, a learning platform that allows to integrate code for frontend and backend into your lessons uses Docker containers for their product. They can't offer runtimes for every programming language running on the frontend and backend, so they allow the teachers to upload their own container. I'd say they are a good example of a company that could need k8s.