One of my siblings seems to be very jealous of the rest of us, thinking we're lucky to be doing okay and have happy lives and that as a result we collectively, and our parents, owe him and his wife.
No one seems to know why. Between the rest of three siblings we've had one person kicked out of school for a drug issues, a nasty divorce, 6 or 7 redundancies, various health issues, two lots of blended families, awful fertility issues and the usual stressful but less exciting ups and downs of adult life.
We all earn more than him but two of us have degrees and another has professional qualifications, while he started and dropped out of 3 different courses and has never finished anything. 2 of us have mortgages but he's never stuck with anything long enough to save any money. All of us and our partners work full time while he works part time and his wife didn't work, entirely through choice, for about 10 years.
He's had some genuinely bad luck over the last couple of years and we've all rallied round and supported them. But his entitlement goes back way before that - borrowing money and not paying it back, expecting us to pay for stuff for all of them, assuming we'll arrange everything for them, never saying thank you and just assuming someone else will sort it.
It's honestly a mystery where he gets his attitude from and it pisses everyone right off.
No two people ever have the same upbringing, but he's had all the same opportunities as the rest of, and more, and it's never enough. He expects us to suck it up when bad things happen to us. He expects us to handle it all when something bad happens to him.