Ok, I hope this topic will not create controversy. I've noticed a ton of people always asking what board they should start off with while starting out. A lot of them consider shortboards and are sensitive to which exact length in inches they should ride. My opinion is that anyone looking to start surfing should try on the biggest board they can get. The larger the board, the better the balance and paddling ability. You cannot expect to pull off radical moves on your first time surfing. Most people can hardly stand up on their first try. Those of you who are anxious to try surfing for the first time should seriously consider trying a longer board first. It doesn't matter how long, as long as possible. 13 ft is never too long. You will learn to surf more quickly in my opinion and you will learn the fundamentals of surfing that way. If you ask many surfers, they will tell you that they have started off on longer boards. I have never seen any beginner ever stand on a shortboard before. This is all my personal opinion, but I hope this helps answer that one question that I keep seeing in all the posts. I'd like to hear what other people think as well.
Aloha!