ELI5: Explain Like I'm 5

National identity cards in the European Economic Area

National identity cards are like a special card that some people have to show who they are. These cards tell important information like your name, your picture, and where you live.

In the European Economic Area, which is a group of countries that work together in business and trade, they have made it so that people from different countries can use their own national identity cards when they travel to other countries in the area. This means that if you are from one country and go to another country in this area, you can use your own national identity card instead of something else to prove that you are really who you say you are.

This helps people move around more easily and do business with each other faster. It also makes things safer because it's harder for people to pretend they are someone else.