Asking this as I don't see one of my sisters all that often, as she lives in Thailand. Her DS2 is her 4th child and has just turned 1. I met him for the second time at Christmas (first time he was 5 months) and was amazed that he is not sitting reliably yet- can only do it with cushions around to stop him tipping over- but that she could leave him half-reclining on the edge of a chair or sofa and he wouldn't move or make any effort to throw himself off. She can leave him sleeping on a sofa and when he wakes up he neither moves nor cries at all. I'm sure he must be very easy to look after because of it but I found it very unusual.
How usual do you think this is? My mother says that babies in Thailand are discouraged from moving much due to heat and nasty beasties. His head seems awfully large, which may be a family trait but I was slightly worried about him, I must say. Could not say anything to her, she would go berzerk. She and her (d)H don't do scans or mainstream medical at all, so for all they know he could have a problem.
He looks as bright as a shiny new button btw- very happy to look and smile and anyone who will give him the time of day, and will reach out for toys if he's given them. He just doesn't request anything or complain at all.