Yes. My cockerel Lucio is nine months old now -- almost a rooster -- and quite a young gentleman. He stands his ground during falcon warnings, gives all the treats he finds to his ladies, and knows that "no" means "no." Lucio spent his first five months of life in the company of older hens. By the time I brought in some younger pullets for him to woo and mate with, he had been schooled.
It doesn't always look nice when older hens school a cockerel. They will peck at him and make no secret of their annoyance. But it's for the cockerels own good, as I've learned.