what's the use
Examples
What's the use of a high school education if you can't recall it when needed later on?
What's the use of money if you have to earn it.
What's the use of stories that aren't even true?
What's the use of dying in a ward surrounded by a lot of groaning and croaking incurables? Wouldn't it be much better to throw a party with that twenty-seven thousand and take poison and depart for the other world to the sound of violins, surrounded by lovely drunken girls and happy friends?
What's the use of consulting a dead man's horoscope?
What's the use of putting honey in an ass's mouth.