My daughter spent a year working in China. Everything was negotiated.
In the US, mostly everything new is sold at fixed price, except houses, vehicles, boats... In other countries, especially 3rd world, everything is negotiated. Bargaining skill is one of the things that mothers teach their daughters in Vietnam, because the women do most of the shopping at markets for daily food. If they are not good at bargaining, their families won't have much food to eat.
When we came to the US, there are at least two things that we like: fixed prices and lining up for service. I was so tired of the pushing/jostling for everything in Vietnam.