I have also researched as so has my vet who is now good with not neutering until 12-18 months, once the bone growth plates have set. There is also significant research on cancer and behavior. When I was your neutering/spaying was basically unheard of so were all the illnesses and behavior & joint problems in dogs. I have a male st poodle pup. I haven't decided what I will do. I'm leaning toward neuter @ 2. We shall see. And I am learning more about desexing rather than neuter but I haven't enough info on that yet. I think if as a family you are responsible that your dogs does not get the opportunity to run get loose you are safe not to neuter however many people just leave their dogs outside where they can jump fences, or gates left open they should be neutered. The whole neutering/spayng became popular because of over population of pets.