I voted for 26-29 but that is just because I was 28 when I had my first. I do believe it is different for each person. Some are capable of being wonderful parents at a very early age and some are never capable of being wonderful parents. (Oh my, the things you can read in the newspaper sometimes. ) I was ready for children earlier but hubby wanted to wait to be more financially ready. It all worked out. I had one at 28 and one at 30 and I was done.