The inhabitants of Japan try to never say no words, simply replacing it with a polite departure from the topic, or with the same consent, which does not oblige anyone to anything. In Japan, there are practically no jokes. In Japan it is considered indecent if you do not have a business card with you, even in the pool the Japanese carry special waterproof bags for business cards, during the meeting the Japanese do not shake hands, but bow to each other
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.