I have a planner user interface showing data related to week days. Should I bother the user to choose from a combobox the Sunday/Monday day as the first day of the week to give him more freedom (he has not to change the browser language setting just to get what he wants)
OR
should I compute the first day of the week from the browser language settings?
I am unsure because that would mean when the browser has german language settings the first day is a monday, but what if the user comes from another country where Sunday could be the first day of a week. Now the user has different expectations.
But maybe I demand/think too much about my customer and just compute the first day of the week and its done?
I am unsure which way to go.