A person born in Australia between 26 January 1949 and 19 August 1986, automatically acquired Australian citizenship.
The jus soli principle was abolished from 20 August 1986, with persons born after that date acquiring Australian citizenship by birth only if a descendant of at least one parent who was an Australian citizen or permanent resident at the time of birth.[7] The definition of parenthood was tested in H v Minister for Immigration and Citizenship [2010] where it was held that parenthood does not necessarily require it to be of a biological nature.[8]
A child born in Australia (and who is not otherwise an Australian citizen) and who lives in Australia automatically acquires Australian citizenship on his or her 10th birthday, if the child has not been granted or otherwise acquired Australian citizenship in the meantime. This occurs automatically by operation of law, and applies irrespective of the immigration status of the child or his/her parents.
-Wikipedia.
Other countries may vary.
Thanks for the update on Australian citizenship laws.
It’s a bit odd, they have birthright citizenship but it does not kick in until the person is ten years old.
Change US policy, it's not a law, to the 10 year plan and that would screw up the prospective mother jumping over the border having kid and jumping back across. It would also give INS 9 years and 364 days to catch up with her and escort her happy behind back to Mexico, and take her child with her. It would eliminate the bleeding heart crap about separating families, so you can't send mom back because you can't send the child back.
I like this!