It is debatable at what age you should introduce children to tennis or tennis lessons. There are official programs such as Tennis Whizz Kids that are formulated for kids between 3 & 4 year olds. Your local tennis club will give you advice on what is the best time to start your child learning tennis.
Any sport whatsoever is going to be beneficial to your child’s health including tennis. The benefits of physical exercise is the first consideration and outdoor exercise is especially healthy.
But tennis does also add other benefits such as discipline, working as a pair, self determination and confidence.
A child learning tennis will soon pick up that the sport as equally about a mental state of mind as physical prowess. Therefore promoting strong psychological and physiological development.