Some answers on why Peter Gabriel left. Vancouver, BC, Canada / Rock 101 - Greatest Hits 70's 80's & 90's Dean Hill May 28, 2015 04:44 pm Life is hard. Even for rock stars. Easy to imagine a plush life filled with jets, mansions, yachts, drugs, girls and so on. Rarely the truth. Here’s some frank talk on the departure of Peter Gabriel from Genesis. Check out the story here.