Child 18 years old, what should I do without an ID card?

Hello, I'm glad to answer your question. You can apply for a health code through the home agent function. The steps are as follows: 1. Click on Alipay, click on your health code, and find "Family Agent" in the lower right corner. 2. Fill in the information truthfully after clicking in. 3. Fill in the information and submit it to generate the family health code. 4. Click on the top right corner to switch applicants and view the health codes of different people. At present, one person can apply for three family members. 6. Without an ID card, you can apply for a health certificate with your household registration book. I hope my answer is helpful to you.