Some people really like to read and it comes very naturally to them but there are people who don't really enjoy reading that much. This happens very rampantly among young children. Sometimes the issue is about likeability and sometimes they find it very difficult to understand. Whatever the reason is, it is very important to diagnose and treat the problem as early as possible so that it doesn't become chronic. As a parent, you must keep in your mind that it won't be a happy fun time for your kid and tantrums or refusals are obvious. So it's important to maintain your stiffness and despite all the behavioral issues that you may encounter initially the reading must continue. With frequent intervals introduce new words to them and ask about their meanings from time to time so that they remember them permanently. Ask them to re-recite what they have read to a different family member for better memory. Include graphic novels to make the process more engaging and don't just stick to conventional methods of reading. Make them read things as per their liking for example if a kid is interested in sports., find age-appropriate sports articles that will fascinate them.