Is it possible for those under 18 to enter directly with adults, or do they also need to make an appointment and purchase a youth ticket?

To buy, book online in advance.
All need to buy tickets, teenagers a bit cheaper.
Free admission but requires reservation, you can purchase it on Ctrip.
Appointment required. Entry requires purchasing a ticket.
Youth free also requires an appointment.
Free admission but reservation required. If purchasing tickets on Ctrip, select the child ticket.
Youth have special needs to purchase tickets!
An appointment is required, but it seems that tickets also need to be purchased.
To be booked. Entrance fee is 6 euros to purchase an audio guide. It’s very exquisite. Suggest to allocate more time.
Also requires an appointment, a free ticket with a QR code will be provided.
To buy, order online in advance.
All need to buy tickets, youth tickets are cheaper.
Free admission but requires reservation; you can purchase it on Ctrip.
Appointment required. A ticket must be purchased upon entry.
Youth under 18 are also required to make an appointment for free entry.
Free admission but reservation required. If buying tickets on Ctrip, select the child ticket option.
Youth have special needs to purchase tickets!
Appointment required, but it seems that tickets also need to be purchased.
To be booked. Enter for 6 euros to purchase a guide. Very exquisite. Suggest to allocate more time.
Also requires reservation, there will be a free ticket with a QR code.