If you don't check your ID card, the old card can be used by others, but now it may be changed. If you take photos when you apply for a card, you can swipe your card when you get the key. When swiping the card, the system will show the main photo of the card and check it at the front desk. This is the process. In fact, if you are busy, it is good for anyone who has time to look at the photos carefully and see if they are male or female. If there is no "photo-taking" process when you apply for a card, you can lend it to others at will.