>>718729654
It's one of the series' most unique aspects that everyone talks about and what makes the world feel more "alive" than most JRPGs. Personally I always do it because it also triggers my ocd not to and I find it's legitimately immersive, but you don't really need to if you don't wanna. Even more so in the remake where anything missable that's important (like the books or sidequests) are gonna get special markers on your map, so just pay attention to that.