Those days are gone! Many brides today use social media to search for someone with a camera, lots of friends that like their work, and a discounted cost. The wedding photographer today needs to be licensed, insured, certified, artistic, and fast on his feet. Not to mention skilled in the digital arts--which is a layer of time and technical skills.
I hear, "you are the professional...go with the flow and make me beautiful!" Couples today that want to rely on the professionalism of their photographer, please make sure they are qualified. Ask about training and certification not just their new camera. Ask about their studio or office so you can be confidence to get your prints. Ask about their license and insurance for your peace of mind and the liability issue your location venue requires. Look at their wedding work and Bridal albums not just the social likes. Talk about your wedding day, location, timing, and potential problems that may arise--and the solutions!
Remember, just like the dress maker, chef, and jeweler, you need to have someone qualified to give you great memories in print and security in the running of your day.