Given that you are responding in a genuine manner means you are not attempting to troll.

A genuine response is thus this:
- kite size depends on your local conditions (bigger kites are usually easier to use as they move slower and make it easier to predict kite reactions - especially when you are learning)
- the make, age and condition of your 16m plus associate gear is also important
If you are asking your original question then there are many factors to consider that we can not answer without more information. However, as the others have stated your best and safest way to start out is to go down to your local kite location, ask questions from those that know what they are doing, learn how to launch and land others kites and observe what they are doing. Show them your gear and get their opinion. Ask them who is the best instructor to get lessons.
Learn the sport safely. not just for your self but for those around you.
Best of luck!