When worldbuilding, writers tend to focus on topics such as magic systems, fantasy races, kingdoms, politics, and religions. These elements form the settings, the backdrops against which our stories take place.
But consider your world. Not the world you’ve created, but the one you live in.
What is important to you? What aspects of your life do you take for granted?
Your world consists of things like your job, your family, your education, and your friends. It also includes the places you buy food from, or visit for entertainment.
It should be the same for your characters. They’ve got to eat and have fun too, so they’ll have places where they do those things or ways to do them.