In many countries, tipping servers is considered impolite as it implies they need the extra money. This cultural norm can be observed in several regions around the world.

For example, in Japan, tipping is not a common practice. Instead, providing excellent service is seen as a standard part of the job. In fact, tipping can be considered rude or even offensive in Japanese culture, as it may imply that the server is not being paid a fair wage.

Similarly, in many European countries such as France, Germany, and Spain, tipping practices differ from those in the United States. In these countries, service charges are often included in the bill, and leaving an additional tip may not be expected or necessary. However, rounding up the bill or leaving a small amount as a gesture of appreciation is sometimes appreciated.

It's important to note that tipping customs can vary significantly from one country to another. What may be considered impolite in one culture could be the norm in another. Therefore, it's always a good idea to research the tipping customs of the country you are visiting or familiarize yourself with the local customs if you are a resident.

References:

• Japan Guide - Tipping in Japan
• Expatica - Tipping in France
• Expatica - Tipping in Germany
• Expatica - Tipping in Spain