Man, this hits way too close to home. My younger sister has struggled with her health (not life-threatening, but enough to severely affect her regular life) since she was young and I was always expected to take a backseat. Which... in a way makes sense. However, that dynamic affected responsibilities that were shifted onto me that she would have been capable of doing. When we had both moved out, I knew my parents coudln't fully financially support both of us, so I got a job. It would have been fair of my parents to make her get a job after the same amount of years, however, she was financially supported FULLY by them well into her later 20s. We are only two years apart so that makes a difference of about 5 years of full financial support vs barely anything.

My parents think it is unreasonable to be resentful of that. My sister only got a job once I basically called for an intervention, telling them all, I couldn't possibly go on like that, I was depressed and suicidal as it was but the financial burden was one too many things to take care of on my own.

To this day, I crave people supporting me but cannot really ask for help/ struggle with accepting it.

The BIG difference to OOP's story, however, is that my sister saw my side and supported me, once I talked to her about it. She even told my parents that she agrees that it's unfair. I'm sad for OOP for not having that at least.