Well, yes, just like I learned k8s but still know iproute2 and I still use tcpdump and curl despite knowing how to debug http requests using the web console An

Well, yes, just like I learned k8s but still know iproute2 and I still use tcpdump and curl despite knowing how to debug http requests using the web console And I still manage ipsec tunnels and NAT and I still have to know things about OSPF, even tho I learned BGP more than 10 years ago In the real world, you cannot simply replace things in the blink of a eye. This is not possible unless you are working in your own, fully-managed environment, never talking to other people (which is a good but scarse position)