The other presidents didn’t have issues with needing to know where they were born. The other presidents had TWO parents who were US Citizens, and both parents were old enough to transfer citizenship regardless as to where they were born.
In Obama’s case, however, WHERE HE WAS BORN MAKES A DIFFERENCE IN NOT ONLY IF HE IS IS A US CITIZEN AS WELL AS A NATURAL BORN CITIZEN.
Those who do not understand why, do not understand the legality surrounding this issue. If Obama was born outside the US, his mother was not old enough to transfer citizenship and his father was not one. Therefore OBAMA IS THE ONE THAT MATTERS.
According to nearly every birther on this board, you can only be a natural-born citizen if both parents are citizens and you're born within the United States. So according to them, the birthplace is still important regardless of the age and nationality of the parents.