Why procedural generating is used so much in gaming?

 Everyone, that plays a lot of video games or is interested in programming knows about procedural generating. Generally, procedural generating is creation content, such as landscapes, enemies or textures, based on parameters of an algorithm. One of the main benefit of using procedural generating is that player will never be placed in the same world as in previous gameplay. For example, in No Man's Sky even if player will start new game every second of his life, he will never spawn in the same planet, because the universe created by an algorithm is too big. Another big advantage is that creating an algorithm takes less time and money than creating world manually. But there are also disadvantages of procedural generating. For example even world created by the best algorithm will never be as complex as world created by hand. This is why in most high budget games world and enemies are created by hand, and procedural generating is used in small area, for example in number of enemies spawned. In conclusion, it seems that procedural generating is very useful tool in hands of game developer, but it can't be used in every area of game.

Source

https://www.makeuseof.com/tag/procedural-generation-took-gaming-industry/