Shortly after the game's introduction, Starfield gives its players the chance to customize their character's appearance and characteristics using an in-depth character creator. One decision players will have to make is in regard to their character's background, which, other than the role-playing aspect it contributes to, is nothing more than the player's three starting skills. Traits have a much greater impact on the actual gameplay.
Source:https://www.cbr.com/starfield-best-character-background/