French phrase
Je ne vois pas l'intérêt de ~.
Meaning
I don't see the point of ___.
When to use it
Expresses doubt about the value or reason for something. It can gently question a proposal without sounding aggressive.
Example dialogue
Tu veux acheter ce billet ?
Do you want to buy this ticket?
Je ne vois pas l'intérêt de payer si cher.
I don't see the point of paying so much.