Three to four year olds love physical activity and anything involving play. They have a rich imagination and strong desire to be less dependent on their usual caregivers. With that said, Martial Arts can prove to be very successful. The problem is many children this age have a hard time with structure in a group environment, which is commonly found in most Martial Arts schools. The solution is to provide them with a manner that keeps them entertained while at the same time building skills that set them up for the next age group.