How does having two in the cockpit enhance safety?
There is an AXE in there for starters, one pilot could over-power the other, a purser... in my experience are by majority Women...
I'm just a SLF but my partner is an FJ, perhaps soon a purser. I'm sorry but having her in the cockpit won't enhance safety, unless her beautiful smile calms down the crazy pilot.
False sense of security which is being done by airliners simply to reassure passengers.