@e9ade9db 😬 Oh no. Poor thing! 😆  
The surgery (expensive, unfortunately) will protect him; young 'whole male' cats are problematic in the city, for others and for themselves: they spread sexual diseases, fight and mark their territories (and get more scratches, sometimes loose ears, eyes, etc...) and make wild stray kittens. They rarely live more than 3 years. 
The vet estimated this one to be 3 years old, in very good health. Rare to find a male like this. He'll be also tested for AID.