Of course, but this also applies to all code. I still remember the time when it was deemed normal, or at least common, to email around diffs and patches in a d

Of course, but this also applies to all code. I still remember the time when it was deemed normal, or at least common, to email around diffs and patches in a dev team, or upload everything to the "code server" in little directories with iso-timestamps as names. Not taking care of code properly, aka. in a VCS, is a disaster, no matter if its C, SQL or utility bash-scripts.