Cory, 21, left hometown club Sheffield during the close season to move to the Super League club.
“He’s had all the support he’s needed, and he’s a good kid,” Aston senior told Love Rugby League.
“He’s got lots of potential – there’s no doubt about that.
“It just shows that there’s different ways to get to the top.
“Now it’s left up to him to see how far he can go. There’s no doubt he’s got talent, and he’s got the ability.
“I believe that Brian McDermott has been saying some really nice things about him, about how mature he is for a young man.
“He’s played near enough 70 Championship games. He’s been watching and playing the game since he was two years old.
“His life is that, and you hope for your kids that they’re successful in anything.”
Aston senior feels that as long as his son has the right mental attitude, he will stand himself in good stead for Super League.
“He’ll be great. I’m sure all the Sheffield fans appreciate what he’s done for the club, and I’m sure that they’ll be eagerly watching the games and results,” he added.
“My advice is what it’s always been: be the best you can possibly be, give it everything and have no regrets.
“I’m sure he’ll take that on.”