Sure, it comes from ignorance but none of these people are young, myself included. Possessing domain knowledge cannot be enough anymore on its own as it implies making room for limiting solutions like terraform that only exist to make the life easier for those who call themselves tech professionals without knowing how to write code. Everyone should be a software engineer. Infrastructure should be in code, and follow software development practices. I hope that the CDKs will become the norm. This also means that nobody will need to “support” anybody but rather “work with” a teammate because they would all be software engineers, no more devops, qa, software walls. It is possible, anybody can still be a SME in something while also being a software engineer, people are just lazy because the industry pays you 6 digits even if you only know terraform and aws.