Yeah, Johnny, i agree with Runningdog and others above.
Rdog is right, no matter what else one does with their dog, last thing you want to do is "correct" a growl, or punish a growl.
Punishing a growl, does not make your dog "nice"
it only makes your dog "silent"
then, like Rdog says, you are left with a dog who HAS learned to skip his warning
and go straight for a bite.
These are the owners who post stuff like, "there is no way to know when Fido will bite someone, one minute he is fine.......next minute, BAM! He's bitten someone."
..........cuz somewhere along the way, Fido was taught "do not growl".
If your concern is about the safety of children, which IS most admirable
and i so agree with you on that one, Johnny, we
do need to watch over children and protect them,
well, if you want to help make a dog safer around children, then teaching a dog to skip his growl is a bad idea.
Punishing the dog's warning growl does not change the dog's inner attitude, he just learns to never give an audible warning anymore.
Even people who do not know
your dog, even strangers, even most children, EASILY
understand a dog's growl, and will usually back up.-----and maybe a bite or attack has been avoided then.

TRUE, you don't want your dog
to feel the need to growl,
i so agree, but you DO want him to
growl rather than bite, is what i'm trying to say. That growl is a
good thing, compared to a bite.
This is something we owners (learning to
not correct a growl)
that some of us do not get a lot of chance to "get right".
But i LIKE that my dog
WILL give a warning,-------- so even if i was not paying attention,

once he growls i can immediately become aware, "oh my! my dog is losing it!" and get over there to intervene to prevent a bite or problem. If he did not growl when he is getting upset, and i was chatting around not looking at my dog, i could miss it all.
But do stick around Johnny, you are not in the "wrong forum". Not all of us agree on every thing, and we all learn from each other, dawg knows, i've learned so much from others here, things i had not considered til i heard them say it, etc.