I'll start this post of by saying that I don't think Bridal Portraits are something you "must" have. When my brides choose not to do a Bridal Portrait before their wedding, I make sure I set aside 10-15 minutes to get shots of just them in their dress on their wedding day. However, I do think there are several good reasons for getting Bridal Portraits done:
1. Doing a Trial Run is Extremely Helpful!
Bridal portraits give you a trial run with your hair and makeup, your florist, your wedding dress, and your photographer. It's SO helpful to be able to look at your pictures and see things you want to tweak slightly with your hair/makeup, flowers, dress, etc. From my own experience, after looking at my portraits I was able to see a few minor alterations I wanted to make to my dress before my actual wedding day. I didn't notice the need for those alterations when I looked in the mirror but I noticed them in my pictures. Having bridal portraits also gives you a lot more confidence that everything is going to look just the way you want it to on the day of your wedding.