I am 32, I have a 5 year old and an 8 month old.
The answer is, no one can tell you the right age for you. You decide that, when you are ready you will have your children and love them. You cannot find anything so worthwhile in this life, than to love your kids and make them the best people possible. My boys are my life, but I still run away with the wife now and then (thanks to my mother-in-law, the best person in the world).
Being married is very fulfilling, being married with children is awesome.
When both of my sons were born I thought, "how can I love you this much, when we have only just met".
If you want to see some photos of my kids go to
http://www.scrapbookresumes.com/BeckyKent/