Bridesmaids dresses

Hey all! I’m wondering what everyone thinks-I hadn’t planned on purchasing dresses for my bridesmaids. I want everyone uniformed so we plan to find the girls on both of our sides of the wedding uniformed outfits. My fiancée isn’t girly so it won’t be dresses for her and the girls but she’s not boyish so it’ll be some classy suit deal I’m sure for them and for my girls it will be dresses. Are we wrong or tacky for not paying for their attire? Several of them already mentioned saving and planning for their dresses (in casual convo) and don’t remember anyone I’ve known buying bridesmaids attire. I’m just asking to be sure and get insight before officially deciding. I do plan to maybe provide jewelry. Especially something they can keep as a keepsake as well ♥️🥰😊