In Dutch there is the expression “Nee heb je, ja kan je krijgen.” This roughly means that being told “no” after asking for something is only as bad as never asking in the first place.
Is there a more convenient English expression for this?
“There’s no harm in asking” is a very common phrase
Also, perhaps when encouraging a timid person, “Go and ask, they can only say no”.
Also, “Don’t ask, don’t get”.