In Germany I learned module arithmetic at something like 13 years old in high school. I also find unsigned much more intuitive and in my code only use sized sig

In Germany I learned module arithmetic at something like 13 years old in high school. I also find unsigned much more intuitive and in my code only use sized signed when I absolutely have to. Which is not often. Only in languages that offer automatic big Ints I just use ints, like Python and Haskell.