What is a fool camera and what are its advantages?

In addition to simple operation, the "fool camera" has the characteristics of small size, light weight and low price, so it is also the most popular home photography tool in the world. Follow-up: Can you see the camera effect? A: Cameras are loved by consumers because of their small size, light weight, convenient carrying, high degree of automation and simple operation, and occupy a considerable proportion in the field of camera consumption. However, some people use the "fool camera" to take poor photos, and therefore think that the "fool camera" is of low grade and can't take good photos. Personally, I think this view is incorrect. In fact, a fool camera is not a bad camera, but the aperture, shutter and focal length are not adjustable. These parameters are all set and cannot be adjusted. So can we find the right distance, the right light, the right angle-make its focal length just right, the aperture just right, and the shutter accurate?