My siblings would make terrible parents. They can barely take of themselves. I would be gravely worried about the welfare of my niblings. My siblings don't even have their own places to live. The oldest lives in a nursing home cause of mental illness and they regressed since being there for years. Can barely care for themselves. Other sibling is similar. They have severe mental problems. Constantly in the mental hospital. They tried to become homeless twice. Has no job. Barely cares for their basics. Also they still live with the parents. My parents probably would kick them out if they were pregnant.
Also I just feel bad for any kid born into this world but I would feel worse if it was my niblings.