It really does not matter if you paddle on a rigid board or an inflatable stand up paddleboard, the process is not going to be very difficult. While it can’t be guaranteed that you will master the craft within a couple of minutes, it is not like it is as difficult as picking up golf for the first time.
Granted you have someone with you that can teach you the basics, you will have the hang of it in no time. Paddleboards are designed to keep you stable while you are standing, after all.