AC had a chance to be an industry leader on the issue of carry-on baggage. They could measure the o/h bins on the majority of their aircraft and implement carry-on baggage restrictions accordingly. A 22" (even 22.5" and likely a 23") carry-on fits wheels-out. Rather than limit the "width" to allow more bags wheels out, they cap the height at an inefficient 21.5"

They have the tested load bearing capabilities of their bins. Yet, they cap it at 22 measly pounds.

This has nothing to do with safety or the passengers. This is a cash grab. I'm sure all the sensitive carry-on bags will enjoy the spare room in the bins to stretch out on longhaul flts ....... and it's hard to express in mere words the increased safety I will feel knowing the bins above me are only holding a fraction of the weight they were designed for.

Aircraft manufactures got with the program, A and B designed bigger, stronger overhead bins on their aircraft. All for not with the likes of AC resisting the urge of progressive thinking when an inefficient option that allows them to charge a little extra is on the table.