Not illegal. A futures company refers to an intermediary organization established according to law, which accepts the entrustment of customers, conducts futures trading for customers in its own name according to their instructions, and collects transaction fees. The result of the transaction is borne by the customer. It is not illegal for a futures company to collect parents' ID card information, such as enjoying some benefits of the company. Identity card information belongs to personal privacy, so don't disclose it without confirming its safety, so as not to cause harm.