I only asked the question because I recently heard someone complaining about girls with natural ears... apparently we're hard to shop for, and without earrings, there is one less option.
The same guy also said that he bought a pair for a girl once, found out she didn't have pierced eats after, and expected her to pop some holes through them because he thought it would be rude of her not to after receiving the gift.
I don't think they'd notice. I have 10 ear piercings so I always look at peoples' ears to see if they have any of the same ones I have. If anyone does notice, it will probably be someone like me. ha ha and there's not many people like that.