Jeanie said "one reason to nueter your cat is to lengthen his life"
I know you are a responsible pet owner who loves your cat. We are not here to judge you or your decisions. All we can do is to offer opinions.
I have three cats, I have owned all three since they were tiny kittens. My male was fixed at 6 months as well as my youngest whom is just 7 months.
My third cat Minnie was not fixed at 6 months. At the time (she is two now) I had alot of reasons why I did not get her fixed. One was finacial reasons.
Another was because Minnie has a very odd personality. She is very scared of everything and everyone. She can be very mean to people who try to touch her, she has scratched and bit people just for trying to pick her up. She will not ever go outside for any reason because she is very afraid of the world.
We moved in August to a house in the country. We have always lived in the city before. Minnie was freaked out from being in the car when I moved the cats to the new house. I took her out and closed her in a bedroom upon putting her in the new house. We were moveing things in. My daughter opened the door and Minnie bolted! She was gone for an entire day.
When Minnie came back she was pregnant. We now have 4 kittens. I have the responsibility of giveing thease kittens to people whom I feel will take care of them, and keep them forever. It is very hard for me because I love the kittens, I hate to give them away! I am sure I will cry to see them go.
Now what if one or two of the kittens does not get fixed? They can each have hundreds of kittens in their lifetime that will each have hundreds more. It is a very sad fact that thousands of animals live in this world homeless! When an animal is cold and hungry it is sad and feels alone , just like you or I would.
I am not saying anything like this will happen with your cat. It probably will not happen. However there really is no harm in getting him fixed, It is actually much better for him healthwise.