* "Kid" is a general term. It can refer to children of different ages, from toddlers to teenagers.
* Age ranges vary. What's considered a "kid" in one culture or context might be considered an "adult" in another.
* Maturity levels differ. Some 10-year-olds might act more mature than some 15-year-olds.
To get a better understanding, tell me:
* What context are you asking about? (e.g., Are you talking about kids in a school, at a playground, or in a legal sense?)
* What specific information are you looking for? (e.g., Do you want to know the typical age range for a particular activity?)
Once I have more information, I can provide a more helpful answer!