I know this isn't the point and might sound ridiculous, but having had a couple of babies myself, I'm wondering how the mothers did not recognise that the baby handed to them was not theirs
I can easily understand why and not just years ago because babies were taken to a nursery.
When ds1 was born I'd been in labour for 16 hours and had been pushing for 3. He was placed on me but I could barely see straight I was so tired. It certainly wasn't the magical moment of meeting your baby that you see on TV all the time. A flash of him on my chest from an awkward angle. Midwife then took him, eventually passed him to dh and that's pretty much all I remember. I have zero memory of the placenta being delivered, being stitched (after episiotomy), nothing. I was dopey and zoned out for a while then pretty much passed out from exhaustion.
I woke up 2.5 hours later and ds was wrapped up in the crib next to the bed and dh was asleep in a chair. That's when I met him, picked him up, actually saw him. In reality it could have been any baby there and there's no way I would have known.