The bank account is linked to your agreement & contract, the card is a medium to access the account.
It is not on the card issuer's (Visa, Mastercard, etc) interest to constantly be generating new card #s, as each has a non-trivial cost (administratively).
It also makes things easy for the opposite case, Visa & Mastercard have an auto-updater program where if a card is replaced due to expiration, they auto-port subscriptions to the new card to avoid service disruptions. [This is not available everywhere, and depends on the merchant & payment processor, but it exists]
It is not on the card issuer's (Visa, Mastercard, etc) interest to constantly be generating new card #s, as each has a non-trivial cost (administratively).
Anecdote, but my bank (not in the US) does issue virtual/single use cards with new numbers and CVV on a simple click.
They also issue a new card number on expiration too.
Comments
bank account != card
The bank account is linked to your agreement & contract, the card is a medium to access the account. It is not on the card issuer's (Visa, Mastercard, etc) interest to constantly be generating new card #s, as each has a non-trivial cost (administratively).
It also makes things easy for the opposite case, Visa & Mastercard have an auto-updater program where if a card is replaced due to expiration, they auto-port subscriptions to the new card to avoid service disruptions. [This is not available everywhere, and depends on the merchant & payment processor, but it exists]
Anecdote, but my bank (not in the US) does issue virtual/single use cards with new numbers and CVV on a simple click.
They also issue a new card number on expiration too.