Wheelchair, not plane seat. She's already got the plane seat just fine.

The article doesn't state it explicitly, but I think there's an implied correlation.

Before the age of 2 you don't get a seat, and it's implied that your guardians are 100% responsible for your mobility.

Whereas a child old enough to require a seat might also need to request a wheelchair, and would be provided with one.

Before the age of 2 you don't need to book a seat. You can book one on every airline I flew with when my son was <2 at least. A child under two needs to be on the lap of a parent during takeoff and landing but can otherwise use a seat. I flew with my son first time when he was about 3 months old, and we had a seat for him because it made it a lot easier.

In this case, she did book a seat.

She booked an adult seat, but was (according to their broken system) 1 years old while doing so. That's different than booking an extra seat for an accompanied infant.

> The article doesn't state it explicitly

"Patricia’s seat was booked as an adult ticket."

Every single European airliner has exactly same policy, 2 and above separate seat and full price.