Can I Talk to Their Mother?
Even if a father is a primary contact for his children, schools will still attempt to reach out to the mother first.
According to the OP, even though he’s the only parent the faculty and school have ever seen at drop-offs and pickups, the institution insists on speaking with his wife first to address something regarding their kid, even though she can just talk to him right there. This demonstrates how common the opinion is that men are unfit to raise kids.