From childhood, Ashley Arratia pictured one job in her future, and it involved a uniform. Scrubs, to be exact. Shadowing her mom at her hospital job, the 5-year-old would imagine herself as one of the nurses. At home, her Barbie dolls would check each other’s temperatures and give shots. “That’s all I’ve wanted to do is just help people,” Arratia said. Today she does indeed wear...