I had the same concern like you when my DD was about 4 month, because all my friends' baby introduced solid food from 4 month. I tried to introduced rice cereal since my DD was 4 month, but she obviously didn't ready by then because she started to cry every time i put the spoon into her mouth. Then we stopped, after few times attempts when she was five months, she loved rice cereal. now she is nine months and she loves solid food. so it's always up to your baby whenever they are ready. :D
