He's been flying his whole life and never knew this. Why? Because it had never happened to him before. Why? Because booking a round-trip ticket, then finding an

He's been flying his whole life and never knew this. Why? Because it had never happened to him before. Why? Because booking a round-trip ticket, then finding an alternate way to get to your destination, and still wanting to come back on the return flight is an edge case. They should have sent him an email letting him know the return flight had been canceled, so he had more advanced warning. End of story.