1. They’re not dramatic
Setting up other people to get in trouble and then sitting back and enjoying the drama play out is way more fun than actually participating yourself.
2. They know how to have perspective in bad situations
They’ve seen older siblings strike out or get in trouble a million times, and the fall out never lasts forever. Youngest siblings don’t make mountains out of molehills.
3. They don’t care about being the center of attention
The reality of being the youngest is that your parents were busy, they had other kids to deal with and were over the helicopter, safety-first parenting style most people adopt with their first kid. Wandering off and doing their own thing is a skill that helps a lot in adulthood, when you don’t have to have someone hand-hold you when you learn a new skill.