I worked in early years for many years, and saw many parenting styles. I always thought it was a shame that most parents didn't realise just how much babies could learn from playing, singing, reading, and interacting with adults. It seemed to me that the perception was often that nursery would be the place where the child would learn.
As for being judgemental, a very young man ( no more than a boy, really) came to one of my " Sharing Play" sessions with his baby. The dad's shell suit & baseball cap combo, I'm ashamed to say, led me to a snap decision as to how good this fellow's interaction would be. Boy, did I have to eat my words! Talking, eye contact, touching, cuddling, facial expression, he was perfect.
Mind you, I did see a young mum on a bus feed a ( maybe 9 month old) baby black pudding and chips which she had in the hood of the buggy!