They have very small brains, and very big gonads! I have not found them very trainable unless you start when they are chicks. Once they show aggression, it is too late and you really should not trust them. A lot of people enjoy the brave and friendly cockerel as they grow up. And then they make excuses for their behavior as the hormones begin to change the behavior of the roo. Most people keep the first rotten rooster way too long.
It sounds like you have young children in the family. Roosters have ruined the whole chicken experience for a lot of kids. Personally I do not advise keeping a rooster until kids are 6 years old. Before that, there is a strong chance that kids will take the attack in the face. And cockerels are opportunist, in that they attack children first, then women and men last of all.
I will admit that I have grandchildren, well under the age of 6 who visit frequently. I keep a rooster. But the coop is a ways from my house, the littles ones don't go without me, and my rooster has not given me any warning of a aggression. I am highly experienced, and very aware of the warnings of aggression. New people to chickens are not.
In my opinion, there are rotten roosters, a lot of them, so -so roosters, and then fabulous flock masters, which rather ruin the other roosters for you, for years to come. But the best way to get a truly wonderful rooster, is not to keep the rotten ones.
When I have multiple roosters, I thin them out, wait and see and thin again. Sometimes none of them make the flock in the end. If you are raising these with flock mates, your chance of a good rooster, IMO dramatically decreases. I would be tempted to cull both of these, and look at the feed store, or 4-H groups, or poultry clubs. What you really want is a rooster about a year old, who has been raised in a multi-generational flock, and is so darn nice he got the bye on being culled by someone who would cull if needed. But do not add him to your girls until they are laying.
Mrs K