What is the main job of a photography assistant in a wedding studio? Can amateurs be photographers?

The main job of a photography assistant is to lay the foundation.

According to the photographer's meaning, adjust the light, help the photographer pose and change the scene and props. If you have to carry photographic equipment outdoors, to put it bluntly, a photography assistant is not much different from other assistants. Do as the photographer says.

As long as you are careful, patient and diligent, you can certainly do this job, but at least you should know some professional photography, or you can get a dimmer board, and you don't know what it is.