The Sole Survivor is the main protagonist of fallout 4, and was originally brought towards his journey inside of the wasteland after being cryogenically frozen for 210 years in order to find their son, usually because of the nature of the quests and Bethesda’s lack of choice based writing in the final version of the game, he is usually forced to say yes during most of these, but even then the side quests are better written than the main one.