Why are capsule hotels so popular in Japan, but difficult to promote in China?

First of all, the cost performance is not high. China can spend the same accommodation fee as a capsule hotel and stay in a hotel with a closed space and an independent sanitary bathing place. And if the standard room, the price is cheaper. If there is such a cheap and comfortable hotel to stay in, why do you want to stay in a 24-hour cubicle, where people can go in and out and hear snoring next door?

Secondly, security issues. Hotel buildings need fire protection. Capsule hotels usually leave a door in and out, and people can't stand straight inside. In case of fire, it is inconvenient to escape. And the personnel density is extremely high, which does not meet the safety standards.

Therefore, when we can stay in a more spacious, comfortable, quiet and private hotel at the same or lower price. Why choose a cramped, narrow, unsafe and private capsule hotel?