1 person company: sure, let's do everything myselve. As cheap as possible.

Two: here I'll teach you, take over DevOps so I have more time.

10 person team, everyone new and your application runs in the cloud. The person who took over, by now, left the company. Extended the infrastructure, didn't inform you and the application has been reworked so it runs on the cloud.

Welcome to the perils of working with people.