The beauty is that they are options. Choose them or don't. Some companies launch with a base model and some launch with the top of the line all options on board. Options are what keep many companies profitable. A typical base model may make ~10% profit for a manufacturer, but options can...
I have had well over 50 vehicles in the last 50+ years from classics to supercars and I have built, rebuilt, or restored most of them with maybe ¼ being factory new. I have also owned a start-up automobile company that almost made it through the prototype stage with an AMG powered supercar...