[Grieryaliny]

So, I was really firm in believing I should get my puppy fixed as soon as he can
to try and avoid any aggression problems, or even him marking his territory plus I'm pro spay and neuter,
but what are the pro's and con's of getting my male bully mix fixed?
I have heard if he will be will me 24/7 and not around other females to just let him keep his manhood, but
I've also heard that you shouldn't get them fixed until after 2 years old
because his head and body won't be fully mature and it could cause him to not
grow as large as he can potentially get.
This information is more likely wrong, but I know
by asking this question on here most of you will give me straight answers and not dance around the facts.
Please know, I will NOT be breeding him. He is not papered he was a rescue and is still only 7 weeks old so it wont be for a while that he is getting fixed if ever haha.