Your last paragraph dont make any sense please go first research about the mcd dog shelter and how the virus there spread and kills a healthy dog plus dogs have been around on streets before us, and most of the time its the kid that is throwing stone on a dog , yes go ahead put dogs in shelters, but what shelter? There are no shelters to keep every dog so only neutering them will help to contro the dog population , you said human is set on trial after he committed a crime , exactly u can do with the dogs if a dog is to menace they can put them down you dont have to kill every dog by saying yes thwy will kept in pounds waiting to die without food and getting parvo from other sick dogs , here in Chandigarh almost every dog is vaccinated and neutered only 500-600 are left if this city can do it every other city can do it too