+1 to this. I agree with the takeaway that paying for managed Kubernetes is the way to go 9 times out of 10 but I think in life its quite powerful to attempt to do things yourself sometimes. No, you should not go out and buy thousands of dollars worth of tools and do everything yourself but its pretty powerful to be able to do simple things in your life...change oil, replace light switches/sockets. The reason I personally find it powerful is that it helps me quantify what is worth outsourcing and what is not and it also builds mental models for how things work which is important when outsourcing work.
A lot of it is finding balance between what to do yourself, what to outsource, and it's not as easy or clean as some people here like to claim.