I didn't mean to suggest that there's no biological basis of personality type. In fact, much research has been done on this subject and the scientific consensus is that personality traits are about 50% genetically determined.
I took your question to be about the birth order in your biological family. Prevalent theories of birth order suppose that differences in personality might arise from the family environment that puts more responsibility on the first born, gives more freedom to the youngest, etc. Since an adopted person does not experience those environmental influences based on their biological birth order, I don't imagine that it would matter whether they were the first child of their biological mother or the last. Of course, they would still have the (profound) genetic influences from the biological parents, but this would be irrespective of their birth order in their biological family.
Molly Owenssays...
I didn't mean to suggest that there's no biological basis of personality type. In fact, much research has been done on this subject and the scientific consensus is that personality traits are about 50% genetically determined.
I took your question to be about the birth order in your biological family. Prevalent theories of birth order suppose that differences in personality might arise from the family environment that puts more responsibility on the first born, gives more freedom to the youngest, etc. Since an adopted person does not experience those environmental influences based on their biological birth order, I don't imagine that it would matter whether they were the first child of their biological mother or the last. Of course, they would still have the (profound) genetic influences from the biological parents, but this would be irrespective of their birth order in their biological family.