Id numbers usually consist of 18 Arabic numerals and contain important citizen information. But some people's ID card last digit is not a number, but replaced by the letter "X", the meaning of which parents must understand.
Case:
Lin Fang went to the kindergarten for a parent-teacher meeting, and the teacher asked her to fill out a form to collect the child's ID card information. The form was passed to Lin Fang, who filled in her son's ID number.
The son looked at the ID number filled in by his mother, and then looked at the ID numbers of other children, and he was curious to ask his mother, "Mom, why is the tail number of my ID card 'X'?" ”
Lin Fang usually did not pay attention to the problem that the last number of the ID card number was a letter, and did not know how to explain it to her son, she chose silence. Seeing that her mother did not answer, Lin Fang's son began to cry. It turned out that he regarded the letter "X" as a "fork" of right and wrong, thinking that it was his bad performance that his mother added such a sign.
In fact, most parents do not know much about the situation that the last digit of the ID card number is a letter. When the child asks questions, it is impossible to give the correct answer, which will inevitably cause the child to misunderstand.
Everyone's ID number is 18 digits, most people's ID card number is a number, and some people have a letter at the end of their ID number. However, whether the last digit of the ID number is a number or a letter, it does not have any practical significance in itself, but is just a code.
<h1 class="pgc-h-arrow-right" >why some children have an "X" at the end of their ID number? </h1>
1. Avoid duplicate ID card numbers
Since the opening of the national two-child policy, the number of newborns has continued to increase every year, which in turn has led to a significant increase in the probability of repetition of ID card numbers. The ID number is a unique code for a person and cannot be repeated, so it is necessary to solve the possibility of this repetition.
In order to avoid duplication of the ID number, the tail number of the ID card number will be added with an "X", which is very similar to the verification code.
Ensure that the identity card number format is coordinated with the number of words
The mantissa of the ID number is used as a check digit, usually represented by the numbers 1-10. Usually, when the number is randomly drawn, the number 10 is drawn, which will cause the number of the ID number to rise from 18 digits to 19 digits.
If the ID card code rises to 19 digits, it is inconsistent with common sense. In order to ensure the coordination of the ID card number format and the number of words, the use of "X" to represent the verification code can just avoid this situation and keep the rules of the 18-digit ID card code not messed up.
For the origin of the tail number of the ID card number is "X", parents can have a general understanding, and they can also popularize this kind of common sense to their children, so that children can fully understand and understand the important role played by ID cards in daily life. At the same time, the ID card is a relatively important document in a person's life, personal identity information can not be leaked at will, parents must not give the ID card to the child prematurely for safekeeping.
<h1 class="pgc-h-arrow-right" > why can't children keep their ID cards too early? </h1>
1. Children are prone to losing their ID cards
The child is still young, lack of care in keeping things, easy to lose, may lose the ID card. Some children are more destructive, even if the ID card is similar to the card, it may tear off the protective film, or break the ID card, which may cause damage to the ID card.
From the perspective of the child's unreliable work, the ID card will be handed over to the child for safekeeping, and there will be a greater probability of loss. If parents need to use their children's ID cards to handle some things, it will be more troublesome. In case the child's ID card falls into the wrong hands, it may lead to the leakage of the child's information, which is not conducive to the child's personal safety and information security, and may also cause legal hidden dangers.
2. Children may go to entertainment venues
Nowadays, the state has increased the safety management of entertainment venues such as Internet cafes, bars and KTV, and must register id cards to enter, and through real-name consumer authentication, minors can be effectively avoided from entering entertainment venues.
If the child has the right to keep the ID card, he may use the ID card to enter these bad places at will, which will not only pose a threat to the child's personal safety, but also bring convenience to the child's bad learning.
Identity cards are very important forms of identification that will accompany a person for the rest of their lives. In order to ensure the safety of children's identity information, personal safety and potential safety hazards, parents must not give their children's IDENTITY cards to their own safekeeping, it is best for parents to keep them properly to avoid unnecessary trouble in the later stage.
The tail of the ID number is "X", which on the surface has no practical significance and has little effect. However, parents should learn and understand the role of id cards and related knowledge in advance, and popularize some common sense about ID cards for children in a timely manner. If the child asks questions, but the parents cannot answer them, not only can not solve the children's puzzles, but also affect the prestige of the parents in the minds of the children.