I think that sometimes people are just pushing for that next milestone...and eating solids is a milestone. Often times I don't think that they intend to discredit our parenting, but that they just think it would be fun and exciting to see the solids happen and don't realize how they come across to someone who is just trying to raise their child the way that they see fit. Some of the comments are downright wrong, like saying that an all liquid diet can't be food for anyone, but often with the suggestions that your child is still hungry and not getting enough, etc, are just people honestly trying to be helpful. They probably don't know the latest on breastfeeding and really are just clueless. In those situations, I guess all we can do is educate them on what the AAP and WHO say and if they press the issue further, put our foot down and say no more, or ignore it.