Not sure what it's like down under, but I know in the U.S. we're (I'm 40) past our prime for a real wage-earning fixed wing career. The instructors and schools will tell us it's not too late, and yeah we could likely land a charter job, but that's not gonna pay the light bills.
I'm thinking about helicopters and the school tells me it's a different market so I'm definitely not to old, but again I think they're blowing smoke.
So I keep my day job and fly just for the enjoyment of it...which ain't bad. This will be an interesting thread to follow to see what others have to say.