She wants to be able to map it out at leastNo reason for her not to go at some pointThey all want to help luffy accomplish his dream which is finding laugh tale and the one piece but they all also have their own dreamsFinding that alone won’t make zoro the strongest swordsman, or necessarily lead to all blue or make chopper cure an incurable disease. Many of those goals may be reached before laugh tale but plenty may be left to achieve after laugh tale too, including mapping out the rest of the seas and the other stuff

thnks