Our two older girls are very different, and grew up very differently.
Eldest was teenager-from-hell, left home at sixteen, utter nightmare. Now 32, settled with long-term partner, two children, house and jobs each - wonderful.
Middle daughter was an angel, worked hard at school, studied hard, became a nurse. Now 31, having adolescence late - self-centred, immature, no job longer than two years, but married so at least doing all this away from her parents.
Youngest - 18 - had usually wobbles through teens, now settled, working and studying to be nursery nurse, long-term boyfriend. Still lives at home but very loving and easy to get on with.
You just never can tell - as Chuck Berry said.