All the tips usually make up a fundamental aspect in the travel or vacation of the common people, since the same sThey tend to condition the attention received by the employees of the sites that are visited, especially if we are talking about a gastronomic establishment.
Happens that each part of the world has its own customs regarding tips, and in Amsterdam for example the question is quite Punic, since here the tip does not seem to be so important, since at least the locals don't usually let hima, except after a meal in a classy establishment.
Equally it is very frowned upon that a tourist does not leave a tipTherefore the custom in Amsterdam revolves around 5 or 10% of the total amount spent, a sum that does not really modify the pockets of tourists much but those of the employees of the establishments, so this is something that must be taken into account.