Hmmm, I'm not sure we're talking about the same thing. Are you talking about someone doing something like writing their own ad-hoc ORM? I would agree that it's

Hmmm, I'm not sure we're talking about the same thing. Are you talking about someone doing something like writing their own ad-hoc ORM? I would agree that it's almost always best to use a library where possible, preferably one that's widely used and very mature.