Choosing to have your future told allows you to pick events as otherwise they occur randomly. (There’s no debuff for doing this.) It only gives you a hint of what the events might be so hopefully doesn’t spoil the fun too much. It’s also a way to make sure players can access all the events as it’s replayed as it might otherwise get frustrating trying to access a the ones you haven’t seen yet (more events are planned so relying on chance alone might take a while to get all events to be selected). It can also be used for anyone who wants to customise their playthroughs once they know what the event stones mean. Hope that makes sense 
Yes that makes sense when I first saw the game thought it would be a different type before I finished it
2 Likes