Do I need to provide my parents' ID cards to enroll my children in basketball classes?

It depends on the specific place. Training institutions vary from place to place. Some need your ID card to access the system, others don't. You can ask the agency. It is reasonable to ask parents to provide identity information, and it does not belong to infringement. If they abuse your information, such as selling it to illegal products and advertisers, it is definitely infringement and even criminal law. Due to the lack of supervision and the low cost of violating laws and regulations, we are understandably worried that the identity information we submitted will not be well protected. Therefore, if they need your information, be sure to ask them what they are doing with your information, and be sure to protect their personal information, because leaking information will bring great trouble and harm their own interests. I hope my answer is helpful to you. Welcome to adopt my answer. Thank you.