Big brother is a term often used to describe an overbearing and intrusive government.
But what about Dad?
If you live in my house you are going to follow my rules. Dad says this. not big brother.
Dad’s get away with this because they provide food, shelter, clothing and medical care. Nobody expects a 5 year old to get a job. Since the 5 year old cannot support himself he must follow rules, at home, at school, and later at work. He is in no way free.
this begs the question. if you are dependent on some entity for food, shelter, clothing and medicine are you free?
in other words if you take from someone or others you pay in freedom.
now, do social programs help the poor or enslave the poor?
Big Brother is the sibling charged, traditionally, by parents to look after the younger siblings, while patents tended to business. They kept the siblings in line and let the parents know when the youngers acted up. The Government in Orwell’s 1984 was the parent. Big Brother was the over watcher. The Party was the true authority…the power…the government. Big Brother was a made up symbol of authority…like a big brothers made up authority. The people feared big brother…which was not a real threat. The treat of course was the Party. Government.
Just my take and remembering high school literature.