But I still don't see the big argument against rookies as old as 22 years old.
18/19 year old players can be developed, a 22 year old 10k player with serious deficits (missing crucial skill) can be dumped right away as training such a player would be a waste of time.
22 year old rookies would only make a sense if they would be strong enough to compete on a mediocre-high level (depening on position that would be 25-50k salaries). How can you put those players in the mix?
I imagine a possible draft could look like this:
Pick 1: 18 year old HOF SG 4k salary
Pick 2: 22 year old All-Star PG 50k salary
Pick 3: 19 year old superstar PF 5k salary
Pick 4: 21 year old star 20k SF salary
....
That would create huge imbalance, imo. Instead of putting in older rookies in the game I would remove the 19 year olds and make all players start at the age of 18 (or vice versa, remove the 18yo and make all start at 19).