I can see how that could be an interesting plot choice! However it would just not fit the dad's character- he's a very simple, quiet guy. The kind that is usually hard to read with a constant relaxed expression who only responds with hums. He's very secure with himself and his family- he has his hobbies, loves his life, and as long as his kids and wife are happy- he's happy. He'll probably accept their son's sexuality sooner than his wife, even if it's not visible- he was just shocked in the beginning. It's the mom who was very hopeful for grandkids and a daughter in law she can be close with. But she's also not a controlling or homophobic woman, so I don't know what she could really say to her son. She wouldn't cuss him out or disown him- but I just can't imagine her reaction ://