Is it normal i won't date guys with bad fingernails?

I have this thing where if I'm on a date with a guy, I always check out his fingernails. If they are not to my liking I might a well end it right there. The thought of chewed up nails or unclean fingernails makes me sick, especially if he'd eventually be intimate with me, I sure as hell don't want them touching me down there with those! So I know it's wrong to toss someone because of their nails, but shouldn't that be something they think about? Like seriously, I don't wanna get an infection because of their lack of hygiene.