> The British system is strictly about convention and precedent, whereas Americans have a little more explicit guidance from the Constitution.
This is complicated by the supreme court which is far more political in the US than the rest of the anglosphere, to the point where it's arguably a third chamber of legislature. They have a lot more latitude to reinterpret the constitution as they wish than anywhere else and they provide the precedent that would very often be left to parliament in other countries.
Just to highlight the difference, if you asked a random citizen of Canada, Australia, New Zealand or the UK to name a single supreme court judge they'd probably be unable to.
This is complicated by the supreme court which is far more political in the US than the rest of the anglosphere, to the point where it's arguably a third chamber of legislature. They have a lot more latitude to reinterpret the constitution as they wish than anywhere else and they provide the precedent that would very often be left to parliament in other countries.
Just to highlight the difference, if you asked a random citizen of Canada, Australia, New Zealand or the UK to name a single supreme court judge they'd probably be unable to.