Bhagavad Gita, Chapter 17, Verse 2

The Deity said: Threefold is the Shraddhâ of the embodied, which is inherent in their nature, the Sâttvika, the Râjasika and the Tâmasika. Do you hear of it.

Faith itself is named here as universal and real, not something only the devout actually have.

Krishna doesn't treat faith as optional or rare, he names it as something every person carries, just shaped differently by which mode dominates. Real faith, in some form, is described as unavoidable.