Because the social security card has two functions and a saving function. The children's lucky money is kept in the savings account on the social security card. They go to the bank, and the bank staff will handle it. If you have a social security card, it is also convenient to use it in a savings account.

Children's lucky money can't be stored in social security cards. Parents can get a bank card for their children's lucky money as a study fund for their children's future study. In this way, children will have money to pay tuition fees in the future. It can also be used as a study fee for children to go to college in the future.