Edit: interestingly, the evacuation took about the same time in total, but in a river, not on land.
Edit: interestingly, the evacuation took about the same time in total, but in a river, not on land.
What I’ve read, the reason people taking their carry-on at least partly is because, when having to get out of a plane in a stressful situation, they won’t think “what shall I do now.”, but just activate their “deboard plane” program, and that involves getting their bags before getting out of the plane.
It's already been reported JAL plane damage was bad enough that intercoms didn't work.
Can't lock them for the full flight, at most you can lock them during first/last 30min ascent/descent. But even there, many incidents begin in the air and precipitate an emergency landing. We will then add another item for the checklist (lock the bins) while they are supposed to be focussed on keeping the plane in the air and safely landing it?
So needless cost & complexity that will have maintenance costs, inconvenience costs.. and then have a high probability of failure in the one case it was designed for anyway.
Many problems are people problems and technology can't solve people.