If someone I was going out with had a collection of sex toys, and went so far as to show me how they work if I asked about them, I would consider that person more interesting, not less.
She started when her age as double-digits? What a late bloomer.
On the other hand, if I'd waited until then to start, I might've been old enough to actually finish. @Silfir
I've seen them for sale, but I can't help but think that the claims about cleanliness that are so overblown for the real thing would be more valid for those toys.