No, this phenomenon is rare. It will only happen once, that is, children are born with very strong brain thinking, and language belongs to the left brain, so people with developed right brains may speak a little later, but the difference will not be too great. Generally, boys' language centers mature late, so most of them speak earlier, but the difference is not too big, just a little later.

As for walking late, it is related to motor nerves. If a child is born with the advantage of body motor intelligence (there are seven kinds of human intelligence), he will stand upright at birth, sit early, climb early and leave early. Of course, other intelligence, such as language intelligence, may develop motor nerves later, and it is also possible to walk a month or two later.

Every child has his own development password, and every skill has its own best maturity period. In fact, as long as the environment is properly stimulated and developed in the order of children's own development, it will mature sooner or later, and will soon catch up with the early development in the later time. Whether a person is smart or not depends on whether the upbringing environment is suitable. Every child is born a genius and has unlimited potential for parents to discover and explore in all aspects. A person's education is lifelong. It doesn't mean that talking early and walking early can determine his future success. Intellectually, there are also many late bloomers, and of course there are young talents. No matter what the successful model is, we have made our own efforts in a good upbringing environment. Therefore, try to provide a good parenting environment for children, and the rest will be natural, so as not to delay the development of children.