4. Middle children are master negotiators.
Often overshadowed by the older sibling’s bluster and the younger sibling’s whining, the middle-born learns the art of negotiation early on. One of the most useful middle child personality traits is the ability to make sure everyone’s needs are met while getting what they want too.

5. Middle children make well-adjusted adults.
Since the only reality they’ve ever known involves having to share and compromise with a sibling, they develop a sense independence and awareness of how to coexist peacefully right from the start.