Well, as previously written, the earlier the better. However, we cannot go back in time, so the time is now. If the child is eager to learn at HEGURU, it is not too late as long as he/she has not reached the age of 9. Should he be over the age of 10, judge by the child’s curiosity towards HEGURU lessons. If enthusiastic, let him participate. He will pick up and improve in memory, concentration and information processing skills.