Whenever I apply for either savings accounts, debit cards, or credit cards, this seems like a staple question for all banks.

Why are they asking if you have accounts in other banks? How do they gain from that?

Whenever I apply for either savings accounts, debit cards, or credit cards, this seems like a staple question for all banks.

Why are they asking if you have accounts in other banks? How do they gain from that?

Edit :

Countries I have personally experienced that ask this : Australia, Philippines