There are many, many AFL footy players that have tried to make it as a footballer at the highest level in Australia and have consequently failed. They then usually try their hand at getting into the AFL. Concurrently, I have yet to find an example of any football player in this country that has tried to make it at Australian Rules, couldn't make it and then tried his hand at football. That says it all.
Since AFL is a league for Australian Rules FOOTBALL and since by any objective argument the highest level of football in Australia would be AFL football, your statement is stupid but correct.
Footy players try to make it at the highest level and fail , true.
Footy players keep trying , also true.