Roosters are not needed unless you are going to breed. If just eggs is the goal, then a rooster is not needed. Hens will lay very well without a boyfriend in with them. Half the fun of keeping chickens however is watching him interact with the hens, and listening to their crow. If a rooster is really needed, his crow can be muffled by the use of plantings and fences, much like street noises are blocked.
Some roosters can become mean.
They will fly into you and your children, picking and scratching at the legs, body and face. So only keep a male if he is needed. There is only 1 way to deal with a mean rooster. Most farm stores carry a selection of food for your poultry. Chicks require chick starter from birth for about 4-6 weeks.