People in Europe don't refrigerate a lot of things. I had exchange students from Germany and they thought we were weird for having everything so cold all the time. Beer and milk especially - they drink that stuff warm. And our way of putting ice in our drinks - they thought that was funny.
Germans appreciate value for their money so adding ice to a drink is considered to be reducing the value. Even at McD’s, where more than three miniscule cubes was a surprise. You get used to it - I used to place soft drinks on the outside window sill to chill when I was the overnight Staff Duty Officer while serving in Germany.