This depends on your child. For example, some children may enjoy team sports at a young age, but become frustrated as the skill level increases. These children when older may enjoy individual sports, such as swimming or bike riding, where the focus is on individual progression. Other children however, can thrive in a team environment and be more motivated to be active if part of a team.
Team sports can be a fun way for your child to get physical activity and develop skills. Around age 6 or 7, children can begin to reach the physical and cognitive levels they need to play organized sports.
With any team sports in the early years, make sure the focus is on learning and having fun, not on competitive play. For most sports, children should avoid specializing too early and try a range of different sports to develop different skills.