You can gently introduce your child to different situations in traffic. At first, start with cycling exercises in protected space without traffic. This can be a schoolyard, a court yard or a similar closed area without traffic. In traffic education gardens or road safety parks of cities, you can practice the correct cycling behaviour in a protected atmosphere and teach your child the meaning of traffic signs.
In traffic space, it's best to start with traffic calmed zones and bicycle lanes. For common cycling trips at the beginning, you support your child best if you ride in front of it to be able to learn from your cycling behaviour. Later, you can encourage your child to ride in front of you so that you can see the improvement of its cycling behaviour. Always have in mind: cycling should be pleasure and not stress, don't overstrain your child. Repetitive practicing in traffic will strengthen your child's cycling abilities and after successful passing of the cycling proficiency test, it will become easier for you, to let your child cycle in traffic independently.