<human>: Condense the text into a few key points

Throwaway. English is not my first language, apolologies for any mistakes. 

I'm dating the perfect guy (for me). I want him and my family to meet as soon as possible. There's one issue though. 

My father has always thought table manners are one of the most important things to define a person. He taught me and my sister to have perfect table manners, and has always been very judgemental about other people over the way they eat, hold their forks, etc.

Now, I've fully absorbed this and my table manners are something I care about, but I don't really care about other people. The thing is: the perfect guy hold his cutlery in the worst possible way. He will pinch his meat holding his fork they eway you would hammer a stake on the ground. He is prefectly educated otherwise, but the way he holds his fork and knife, which is somethingmy father cares so much about, is terrible.

I do know this will be a huge issue for my father when he meets him. I don't really care  about whether my father approves or not the people I date, but I do worry about how my date will feel once my father acts in dissaproval of him. My dad won't tell him anything,he's not that rude, but he *will* dislike him forever. It's just not one thing he lets go. 

So, should I talk to him about this? How do you approach and adult person and tell them they've been using their forks horribly all of their life? How not to sound like the snnobiest person on earth? Should I say nothing and let him be hated by my snob father who would otherwise love him -I'm sure-?

Help
<bot>: Perfect guy who uses his cutlery in an awful way; I don't care but my father does and it will be an issue.