Then why is a commercial required in order to get a CFI?

That's a very good question. I believe that is one of the items they
"fixed" with the sport CFI (but I don't remember the final draft).
However, the FAA has been very clear that instruction is not flying for
hire. Maybe its just because the FAA wants CFIs to fly to commercial
standards or perhaps the FAA didn't want the bother of having "private
CFIs" and "commercial CFIs" (to give commercial instruction).


-Robert