A child's place in the family birth order may play a role in the type of occupations that will interest him or her as an adult, new research suggests.
The examples mentioned in the article go very much against anything I've observed. The reason for this could be that I come from a very different culture. On the other hand, I've heard from different people that my own personality is very much what you would expect from a child "in the middle", with the same number of both older and younger siblings.