Why Do Some Countries Drive on the Left?
Left was the original default across most of the world. The switch to the right came from wagons without a driver's seat, and then from Napoleon and Henry Ford, and about a third of humanity never switched.
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Why Do Some Countries Tip and Others Don't?
Tipping customs are not about generosity. They follow from who pays the server: where the employer covers the wage, tipping stays small, and where it does not, tipping becomes the wage.
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