Why are most deserts on Earth located in the central part of the continents?

As you know, most of the precipitation (snow, rain, etc.) is formed from moisture, which evaporates from the surface of the seas and oceans. When the wind directs the cloud toward the continents, they often collide with mountain ranges, and all the moisture contained in them falls on these heights. Thus, the dry wind is already reaching the central part of the continents. For this reason, most deserts or arid steppes are located in the central parts of the continents.