[T.K.]

Luck is the driving force of characters.

It's what make heroes be.

To me it feels kinda GM butthurtness leaving players that much in the dark for their Luck use.

For my players I normally give some info on what they might be missing out or didn't fair well on the roll so they can decide if they want their Luck roll or not.

I guess to me this comes very sparingly, since they tend to use their Luck on combat or active rolls, so...