No reason why except the peds nowadays try to just rush everything. He actually told us we can start at 4 months but of course I wanted to wait! I may start at 5 1/2 months. L/O will be 5 months on March 11. So then our schedule would look like this...7 am feed, A time, 8 am rice cereal/oatmeal?( I bought organic brown rice cereal) by 9 he would be down for his first am nap. When do you normally bring on the second meal? Is there a guideline?