At one year of age, he's well old enough to sire pups. He's not a puppy any more!
Treat him as the young adult he is.
Haredown Whippets - Don't you worry, he most certainly does get the respect he deserves & is treated accordingly to his age.
Glad to hear it and best of luck with him. I'd make no assumptions about him being good with other dogs. Is he desexed?
He is desexed. He is quite submissive & loves to play with other dogs. Once he is distracted though it can be a challenge to get his attention back!