Most pilots I know wouldn't want to be flying F-15s in 2030 either
This is the mistake the RAAF has made. It has gambled looking forward too far with the assumption tat the JSF will be available and forgotten the time period in between.
And since then, the Americans are increasing their presence in Australia, which eliminates any realistic Fortress Australia threats which was part of the argument for a 100 aircraft JSF fleet.
Looks to me as though there will be emerging arguments within the next few years for an actual reduction in RAAF fighter squadrons.