In the UK the details needed to transfer money into an account are on most bank cards (Account Number and Sort Code), so that's enough identifying info.

That would also mean someone can send you money if your card is blocked or cancelled. Account number and sort code don't change when you get a new card.

Also, "Faster Payments" is the name of the normal system to transfer money between accounts in the UK. It doesn't cost the sender anything other than the money they send. It's called "faster" because the old system was a lot slower (because it was based on paper I think?).