Not entirely sure it has , changed from when I was sixteen perhaps.
Your last sentence is kind of why I think he could possibly stay on. I imagine he'll willingly step down and if he gets walloped he definitely will but if he gets in excess of say 68 seats there will be an argument to be made in his favour. More to the point the mass exodus of ministers particularly from the old factional guard means the alternatives are not abundant. In a different set of circumstances Smith, Roxon and Combet might otherwise have been plausible alternatives but they're all gone now. Assuming Bowen and Albanese genuinely support Rudd rather than joined him in a marriage of convenience it's really heavily reliant I think on the mindsets of Burke and Shorten. And if they both decide they don't want it at that point in time, who else is there? Pibersek? Beattie? Swan?