The Greek behind this indicates each and every person has sinned. Everyone.
“Each and every person”? It doesn’t refer to Jesus....for one.
If Jesus was to share fully in our humanity, which He did, being tempted in every way as we are, yet was without sin, then it would preclude being raised as an only child by a perfect mother.
There is nothing like a little sibling rivalry to bring out the best and worst in people.