There are two paths to becoming a better rider:
the first is technique. . . know how your bike behaves to make riding it easier;
and the second is attitude . . . the way you think makes you safer.
Every state has different rules on compulsory training to get your licence (see Ask Me) but ALL riders should consider advanced training as well.
Whether it is braking and cornering, evasive action techniques, off-road riding, track skills or ATV - you can never be "over-trained".
Every rider should also acheive a basic level of first aid training by attending a St Johns Ambulance Motorcycling First Aid course.
"Learning to ride is easy with the right attitude.
It's having the right attitude that is difficult."
Zen and the Art of Motorcycle Maintenance.