Tipping is entirely dependent on culture however most cultures do accept some level of tipping as a thank you for a particular service. Japan is one of the exceptions.
Living in Hong Kong and travelling in the region for the last 18 months has given me some great insights to Asian cultures and the variations that they have. Just as it is in Europe and throughout the Western world there are certain important nuances that differ. It’s complex and I’m still learning!! So let’s talk about fish, just for fun…