Too young for YVES SAINT LAURENT?

I am 23 and now studying in grad school. I am planning on getting a new pair of glasses and I saw this perfect perfect Yves Saint Laurent glasses in a store. I want to buy them, but i am worrying that other people may think YSL might be too mature for me.(or even worse think i am some shallow girl whose only care is brand) The glasses are just perfect for me and the logo is hardly noticeable. Should i buy them? Is Yves Saint Laurent a brand for young people?|||Not at all. If they look great and you feel comfortable in them go ahead and purchase them! I don't know if designers have specific age ranges they try to target but Kate Moss is the YSL spokes model so I would guess they target adults (and young adults). Nothing should get in your way from obtaining great style, design and quality!|||NO WAY im in middle school i wear there stuff