I learned today that I'm a wee bit of a prude.
My sister, my older brother's girlfriend, and myself went shopping today, with the final stop being the local sex shop.
Much cringing and thoughts of "OMG, what the hell am I doing in here?" followed. Especially looking at some of the "movies." Let's just say I'm going to have bad thoughts about The Munsters for awhile.
I have to admit some of the books on offer were interesting, but any more dwelling on that and I'd have to join the NSFW group.
I don't think you've established yourself as prude.
FWIW I don't like the sex shops I've visited either. They feel very weird and I can't think of a reason to be there. I think that discreet is sexy and if you want something sexy you should get it discreetly.
The only true way to figure out if you're prude is to ask yourself "would I wear a bunny tail buttplug for my lover".