According to lawyer Robert Barnes, this is a fairly recent “made up” hurdle in the 20th century. It “seems” like a way for the court(s) to get out of having to make tough decisions.
To be fair, my court guru Zen Master disagrees, says it has a long tradition. And we really can’t get around Article III of the Constitution.
My response was that smart lawyers (like Mickey Haller, the “Lincoln Lawyer”) would invent a way to do so!!
Article III of the U.S. Constitution says in part:
...”the supreme Court shall have appellate Jurisdiction, both as to Law and Fact, with such Exceptions, and under such Regulations as the Congress shall make...”
Did Congress write a law that defined “standing?” (I’m not a lawyer, so I don’t know).