PK the ;later draft age isn't a bad idea, I have never ben comfortable with 17 and 18 years old's relocating across the country, some cope some don't. also many of our best young talent never play WAFL league and the clubs dont get the best out of the investment in them.
Perhaps if the rule was 40 league games or age 21 whichever comes first, this avoids the argument of the gun 16 year old having to play in the WAFL for 6 years before draft age, they play 2 seasons of footy and off they go, we get the see a gun in the WAFL and they get used to playing on grown ups and a re a bit older when leaving the nest.