I agree with ummm's last comment, I found when my children were younger there was a whole competitive thing going on in mother and baby groups/nurseries where mothers would almost compete with who ate food first, who sat up first, who started walking ect ect, needless to say the majority would tell me their child is very advanced for their age.
I found that element quite dull and unnecessary, I enjoy talking with other parents about our kids, but obviously if that was all we ever talked about I would find that a bit dull