In my experience it's usually because the DBAs end up "owning" all database development, both because the DBAs consider it their domain, and developers don't fe

In my experience it's usually because the DBAs end up "owning" all database development, both because the DBAs consider it their domain, and developers don't feel comfortable with PL/pgSQL and they don't want to anger the DBAs. It shouldn't have to be this way, though.