Why is ASU asking for my wife's high school transcripts when she is already in college?
The latest degree matters

She's joining a new institution from scratch. If she hasn't graduated anything else, the new college is admitting a high school graduate, and they want to see these transcripts to verify that she is a high school graduate. They have no reason to assume that some other organization did the verification in the way they require. They may have some process to transfer (partial) credits for courses completed in the previous college, but that happens after she's been admitted.