Most people are focused on their specific interests or casual, and there is a partial crossover in these two things. There are some hardcore players that do everything the moment it's available and you will see them all together the moment resets happen and right when a patch comes out. Because they play so much they will be the first ones to queue for all the new things, usually with their glowing relic weapons on display to show you just how much time they invest.

A lot of people are focused not by choice, but because they are forced to be, because they are still getting through the main story and there are parts of the game they can't actually do yet and plenty of things at the lower levels distract them from it, like glamour or the gold saucer.