Working in offshoring projects for the lowest bid changes one's point of view, regarding "programmers I know" approach.

I work a lot with students who can not program well in C. I would say turning on -Wall is not a difficult problem for them. If it is, then using another programming language also does not help.

That is already progress, compared with the quality of delivery in many offshoring projects.

It usually might go so bad, that after a couple of years, a new management ends up onshoring it all over again.

You might turn -Wall, but then who fixes the warnings?

And better be prepared to fight managament if warnings break the build, as it "slows down sprint velocity with useless coding efforts".

Unless required by some kind of certification laws or quality assessement on project delivery.