If citizens need to borrow books from the library, they generally need to provide a valid second-generation ID card and scan the chip data to borrow books. If the child is under the age of 16 and does not have an ID card, the guardian can borrow books with the ID card, or directly consult the local library about whether to use the household registration book. Considering that most areas need to use resident identity cards at this stage, it is recommended to apply for resident identity cards for children.

People's Republic of China (PRC) Identity Card Law

Article 7 A citizen shall, within three months from the date of reaching the age of 16, apply to the public security organ where his permanent residence is located for a resident identity card.

Citizens under the age of 16 shall apply for resident identity cards by guardians.

Article 8 A resident identity card shall be issued by the public security organ of the people's government at the county level where the resident's permanent residence is located.

Article 10 To apply for a resident identity card, a registration form for applying for a resident identity card shall be filled in and a residence booklet submitted for examination.