Kittens usually experience some behavioral changes during their growth. Young kittens are often more active, curious, and like to play. This is part of their nature and it is also the way they learn and explore the world around them.
As we grow older, many kittens will gradually become more mature and calm. Their behavior will also become more stable and no longer be impulsive as they were when they were young. This usually appears gradually as the kitten enters adulthood.
However, each cat is unique, and their personality and behavior may also vary depending on individual differences. Some cats may maintain a more lively personality, while others may become relatively calm.
In addition to age and individual differences, cats' behavior may also be affected by various factors such as environment, health status and social experience. Therefore, it is impossible to simply predict whether a kitten will become calm when he grows up.
If you are concerned about the kitten's behavior, or if it is extremely active or impulsive, it is recommended to consult a veterinarian or professional pet behavior consultant. They can give more specific advice and guidance based on the specific situation.