anne, I believe your parents and family are sad about it. Well, probably he will think of your family when he becomes a dad himself or older. The cruel fact is , I always think boys are "Married" out once they found setup their family, girls tend to think of their own home & family. Like my bros in the family tend to be less sensitive towards the needs of the house. Well, there is always exceptional cases.
Berries, Middle Child Syndrome! honestly, when I was younger, i always argue with my elder sis. Sis and my gap quite far apart.. probably because of middle child syndrome.. sometimes quarrel also. But she is nice to the family lah. So, up to now, I still feel it's good to have a sis. If u want girl, do b4 O-day.
Next time when the kids start to fight, parents have to step in, then from then, we will understand how our parents feel and why they side the eldest and youngest.
But now i am ttc for #2 and if I have, most likely the #1 will feel neglected and jealous. I have to prepare to handle such situation.