Age and ability will affect how you pursue sports professionally as part of school and more. However, when it comes to just enjoying a pastime with family and friends, age and ability really are not much of a determining factor. Levels of participation are only determined with how seriously a person takes themselves.
Age or ability should not determine what level of sports you should participate in. Every one should have the chance to at least try a sport, even if they are not very good at it or they are too old or young. Trying some thing new is a skill that every one should have.