Does China Eastern Airlines have to buy insurance when boarding at Shenyang Airport?

I don't think e-tickets in China are very formal. I use the e-ticket of China Eastern Airlines, which is similar to the ordinary ticket. I went to the special e-ticket counter to check in, changed my boarding pass, and bought insurance. Finally, I can reimburse the reserved air tickets.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.