I find it mildly disturbing to see how willing people seem to be at a personal level to attach themselves skill-wise to single-vendor solutions.

I get that CloudFormation may be a bit better than Terraform in this way or that way. But I have no personal interest in learning it. All that investment of time and effort and when I need to do a project on a different vendor I have nothing, no skills. What's the point?

To be clear: I understand why companies and even specific teams or projects may choose to go all in on vendor-lock-in. It's often the most direct line to the business value they want and as people point out, it's rare to never that most cloud native applications will shift cloud vendors, and even if they do most of a Terraform setup will have to be reworked.

So I get why companies and managers want that. I just don't understand why software engineers in those teams are so happy to go along.