my 4 year son doesn't want to go karate class,as I want to engage him with physical activities.i tried to convince him but failed.what to do??

A. Look you should not push your child to do something what you want your child to do right now you should try to figure out what your child is interested in and then you enroll your child into something maybe your child would love to do swimming or any of these activities try that and also even as per doctors the correct age to enrol your child to any good activities because by that time they have a sense of liking a thing trying to follow the command and try to do something new that you are involving them into