Then again it's my personal view that divers shouldn't go without a dive professional until they've done at least rescue, so maybe that says something.
I respect your personal opinion. My personal opinion is that every diver should progress at least to SRD. It is also my opinion that any diver in possession of a valid OW card (as opposed to "discovering scuba" or some such thing) should be able to dive safely (with a buddy) in a similar environment to that in which they were trained, without a DM holding their hand. It is my personal opinion that a C-card should be withheld by the instructor if the instructor would not be perfectly comfortable allowing said candidate to dive with that instructor's children without a DM (or anyone else) present.