The traffic code exists to standardize automotive and bicycle flow predictability. Deviation from those standards decreases safety and the risk of accidents rises.
Those breaking the traffic code (knowingly or unknowingly) are putting themselves in great danger, as well as others. Some would say it's just stupid. Being ignorant of the traffic laws may very well be punished by death.
Perhaps licenses should be issued for those who have a basic understanding of the applicable bicycle traffic laws.