When I was 8 I told my mom that I was interested in dums and want to take classes.
When my older sister turned 12 she got the drums and the classes.
I got a bongo drum.
When she was 18 she told my mother her cooking skills were upper garbage and that she want to move out, which she did with the help of our parents.
When she went to college, she didn't made enough to survive so our parents send her $100 every month so she could pay rent.
5 years ago our parents gave her $20000 to pay some of her debt back, she paid $10000 in debt and the rest she spend on a car and vacations to japan and other countries.
She also came out as lesbian which my parents didn't liked at all, as far as considering disowning her.
But no matter what they somewhat stick to her.
TL;DR you can't choose your parents nor your siblings, make the best out of life