I agree, thebody - parenting advice is generally a fashion and it does change.
I only say this because I had the most 1970s baby going - in 2012. She hated baby-wearing, being fed on demand, sleeping anywhere near someone and baby-led weaning, to give a few examples. Gina Ford would adore her. I wasn't against any of these things (bar possibly the co-sleeping, but I bet I would have changed my mind sharpish if that was the only way any of us could get any sleep), I wanted to wear a sling, I wanted to try blw, she hated all of them. She wanted routine, quiet, her own space, and a spoon.
Twenty or thirty years ago I would have fit in with the current guidelines and probably could have been the smug parent talking up how wonderful all the new advice and the current parenting books were, while other parents whose baby wanted to be with them all the time felt they were the ones being criticised. In the 2010s, my baby's preferences go against most of the currently popular theories, and so I get to be called "unloving" because my baby was happiest in the dark and quiet in her own space at a few months old, not in the corner of the living room or in our bed.
Just like I've been told that if anything had happened to DD when she was asleep in her own room, despite us following the rest of the guidelines (cool room, swaddled in a proper swaddle wrap, on her back etc), it would have been my fault for not making everyone desperately unhappy for those 6 months by keeping her with me every second of the day.
Sorry - sometimes these comments touch a raw nerve 