Using Kubernetes is a skill worth learning and is pretty straightforward to pick up.

Running a Kubernetes cluster, in a shared environment (e.g. not just a hobbyist or single-purpose cluster), is much more involved. I'd never say developing a skill isn't worth it, but it is a deep subject with lots of unintuitive and frustrating corners, and you won't pick it up in a day or without scars. There's a reason lots of small- and medium-sized business just write a check to their cloud provider.