Sidequests are rarely worth doing for anything other than their own narrative and for clearing the icons off your map. The amount of XP and Gil received is practically inconsequential and not in any way time-efficient.Blowing through ARR only doing mainline and job quests c as recommended. Once I get to heavensward, are side quests worth doing again?
ShB changed it up a little bit by scaling the sidequests to your level, but they still give very weak XP compared to basically any other leveling task.