Good grief.
BTW, I'm just back from London with kids. I was using the wheelchair gates all the time, because kids with adults are free there, and the procedure there to get kids in and out, is to use those gates (rather than the silly idea of giving all the kids a card, that charges $0). Not once did I see the gate I needed broken.
But also, I didn't see them trying to put people in both directions through the same gate. So each fare line had 2 wheelchair gates - 1 in each direction. And the gates looked a bit more sturdy than ours.
Also, I never saw a fare line, that didn't have an employee standing near it, to assist (like the one occasion my wife tried to use the regular fare gate, and lost the 4 year old, who got through, and she didn't).
Byford knows all this stuff - so why do we have appear to have messed this up here?