In the US, displayed prices are often not the actual price. Taxes and sometimes other fees like mandatory tips and bag fees are added to the total, which isn’t reflected until the very end. If people are used to this, then I can imagine that there is a level of constant uncertainty of a hidden variable that would lead to trusting the written suggestion. Just my 2 cents (plus tax).
In the US, displayed prices are often not the actual price. Taxes and sometimes other fees like mandatory tips and bag fees are added to the total, which isn’t reflected until the very end. If people are used to this, then I can imagine that there is a level of constant uncertainty of a hidden variable that would lead to trusting the written suggestion. Just my 2 cents (plus tax).