Okay kiddo, let me explain electoral districts of Europe to you.
Imagine you want to have a party and invite some of your friends over. You can't invite all your friends because your house may not have enough space to accommodate everyone. So you decide to divide your friends into groups and invite one group at a time to your party.
Similarly, Europe is divided into different regions called electoral districts. These districts are areas that have a specific number of people living in them. To make sure that everyone's voice is heard and to have fair representation, these electoral districts have their own elections where people vote for their representatives.
For example, let's say you live in Berlin, Germany. You would vote to elect your representative who will represent your district in the national government. The same thing happens in other countries in Europe, where people in each electoral district vote to elect their representatives.
This way, the people living in each district can communicate their needs and wants to their representatives, who can then take those concerns to the national level. This helps the government to work for the good of all the people in the country, and not just some of them.
I hope that makes sense to you, kiddo!