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> Doesn't Tokyo have very low unemployment? According to Wikipedia: Japan 2.5%, Singapore 3.2%, USA 4.1%, EU 5.2%.

Singapore's unemployment statistic only counts people who are looking, not people who are retired or have given up [1]:

> A person is considered unemployed if he or she is:

> • not working;

> • actively seeking work; and

> • available for work

I don't know if the other countries follow the same methodology.

[1] https://stats.mom.gov.sg/iMAS_PdfLibrary/mrsd_qtlmr182_Techn...

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Don't make the mistake to think these jobs are just there to keep bored retirees active. The basic old age pension (kokumin nenkin - for sole-proprietors and people who have worked in non-permanent positions or small companies) is significantly below the poverty line at 70,600¥ per month -- that's $450 and that's if you've worked for 40 years without any gaps.

The vast majority of old people working these jobs, e.g. construction site security, do so because they would likely starve without it.

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State pensions everywhere tend to assume home ownership. I haven't been to Japan since they started doing wild funny money stuff, so I don't know what that's doing to local prices/economies, but not that long ago $450 + home ownership would have been completely fine in many areas.
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Due to its aging population and lack of mass immigration, Japan has a desperate labor shortage in many fields.

I don't think taxi driving in Tokyo is one of them (because, as noted, the qualifications needed are pretty minimal), although eg bus drivers are in extremely short supply.

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Most people in Tokyo dont have time for cabs after working 15+ hour days 6 - 7 days a week.
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