What do you think about people who wear trendy fake eyeglasses? That is to say, they don't use glasses for vision correction, but just wear fashionable frames with clear glass in them. Also, since trendy fake eyeglasses are so popular these days, why are there no trendy fake canes? Or orthodontic retainers? Or trendy orthopedic shoes?
What do you think about people who wear t-shirts for bands/movies/comic books/whatever they know nothing about and don't actually like, either to be trendy or just because they like the design of the shirt?