Because at this age, children start to use their motor skills better and discover their strengths as development milestones. When choosing games for 7 years old and games for 8 years old, you can choose games that are fun and educational but also require a longer attention span. Also, you can start taking advantage of printable activities. For 7-year-old development and 8-year-old development, you can choose more complex and challenging activities than younger ages. Children 7-8 years old are now more mature and confident these days.