/kloc-children under 0/.2 meters can take the train for free, but they must be accompanied by an adult passenger. An adult passenger can only carry one child for free at a time. If there is more than one child, the extra people must buy children's tickets.
Children's tickets need attention:
When buying a high-speed rail child ticket, you must provide a valid identity document for the child; Such as household registration book, ID card. If the child does not apply for a valid identity document, he can use the valid identity document information of his peers. In other words, you can buy children's tickets with adult's certificate information. High-speed rail children's tickets are not across the board, and height factors need to be considered.
Children without ID cards who want to buy children's tickets can use their peers' ID cards to buy tickets on the online platform. When buying high-speed rail at the ticket window in high-speed railway station, children's tickets are not registered in real-name registration system. When buying children's tickets, adults in the same trade don't need to provide their children's ID cards, just tell the conductor.