See also Goshitels in S. Korea.

Ultimately, outlawing the worst option means that some people who would otherwise obtain it instead get nothing. But maybe that's worth it.

Those are cool. I found this funny about them:

In Japan, capsule hotels have been stereotypically used by Japanese salarymen who may be too drunk to return home safely, have missed the last train of the day to make a return trip home due to working late hours, or are too embarrassed to face their spouses.