Ответ:

1autor thought that it's for Rizza's entertainment in quiet periods in his shop.

2actually he thought that it's not necessary to have security cameras in such а tiny place.

3the reason is you don't need somebody's permission to instal them wherever you want.

4.they can help with catching thief or criminal, to solve a crime, also cameras give safety feeling.

5. as cameras are everywhere, even in the quietest public parks' corners, it  can break peoples' privacy.

6. because his face was shown on TV without his permission, so he wanted the compensation.

7ICCV did not help because thief turned off the camera, so it came out useless.