'Ambitious' often means doing optional things that take time.

A single person who cuts back on time spent doom scrolling / tv watching / beer drinking to teach themselves enterprise Kubernetes sysadmin best practices is ambitious.

A new parent who cuts back on time with their kids to teach themselves enterprise Kubernetes sysadmin best practices needs their head checked.

Unless you need a job to keep that kid housed because you made the unfortunate decisions of taking jobs at companies that didn't use kubernetes...