There will be no Paparazzi if there is no 'market' and in lot of cases it's 'win-win' relationship between Celeb-Paparazzi First of all, when you decided to be a celebrity, you have to accept that you are a 'public' figure. I believe they know it and it's actually one of a lot of things they wanted as they choose to be a celebrity: to be 'popular' and 'center of attention'
There is so much youngster who want to be famous this day. That's why they go to the audition, make videos, uploading lot of beautiful pic in instagram. (They probably do it to earn commercial benefits too but, they do want to be 'popular' to get it)
Paparazzi could be a great help for celebrity to get publication.
If you looked at gossip magazines, you will realize that not all of the pictures is bad one. People also want to know about this celeb fashion and that they do taking care of their family by walking their son to school.
But, just face it, you wouldn't just get a 'good publication.' That's not how things work. Also our brain are more interested in bad news. We remember it more than the good one.
That's probably why you think that this paparazzi only looking on A actress drunk or B actor got into fight.
If just people don't buy gossip magazine anymore, don't have interest whether Taylor Swift having a new boy friend or not. Then they will be stop doing that job even they didn't get banned.
So, instead of talking about banning this group of people. We should start from stopping our interest in other people life, or...
Just stop criticizing when you are the consumer of their works and the reason they exist.