Jeremy Clarkson.
how did you decide what the area should be
In countries where there is democracy, it is the parliament (or the meeeting having the right to make laws). It is because the parliament consists of representatives of the citizens - the representatives are chosen by the citizens. So, indirectly, it is the citizens1 right to declare war.
because it is fun and you get presents!
Upper Class girls where chosen, by there family, only the richest could decide.
yes
It means, "For each conversation decide where the persons [speakers] are."
Paris, Prince of Troy
You decide.
The producers of the show decide the categories given to the judges.
'Choosen' is not a word, so do not use it at all, ever.
That's for you to decide.
you decide.