I think the concept of "turning" is certainly iconic enough to justify some kind of mechanic. Plus, I've always enjoyed "encouraging" my players to RP their turning attempts.
"You call that turning? That wouldn't turn a swatted fly! C'mon, Sister, show me some holy fire! BRANDISH that holy symbol!"
A lways B e C losing.
Anyway, I could see "turning undead" as one subset of a suite of abilities, the others affecting maybe Outsiders or Aberrations ("You - shall - not - PASS! "), maybe even humans and humanoids ("Hiss, hiss. Gypsy curse!"). Just a thought.
"You call that turning? That wouldn't turn a swatted fly! C'mon, Sister, show me some holy fire! BRANDISH that holy symbol!"
A lways B e C losing.

Anyway, I could see "turning undead" as one subset of a suite of abilities, the others affecting maybe Outsiders or Aberrations ("You - shall - not - PASS! "), maybe even humans and humanoids ("Hiss, hiss. Gypsy curse!"). Just a thought.