I take all 4 of my kids to parties and always have. They are usually well behaved. They are very social kids though and love talking with everyone and dancing etc. even as babies they can with us and would sleep in the pram or get cuddled.
Every child is different though, just because my kids love it and act well behaved other children my hate parties and find them very overwhelming. Kids are just like grown ups, not everyone likes the same things.
As for the comments you got, I would find that incredibly rude.