As long as the child is an adult and he is the cardholder, parents have no right to ask the bank to stop using his credit card.

However, if the child overdraws too much and cannot repay, resulting in malicious overdraft, the bank will naturally freeze his credit card, and it will be difficult for the bank to approve the application for a new card in the future.

If the child uses the supplementary card of the parents' credit card, the principal cardholder can call the customer service of the credit card and stop using the child's credit card.