Since we're talking about our families.. My best friend that I grew up with is a late stage alcoholic/drug adict. I don't know how many months he has left. I used to try to put it aside when I talked to him, but it made made so depressed that I don't talk to him anymore. He's dependent on his parents for his alcohol and drugs and shelter, but if he didn't have them then he'd be dead. They've tried everything-kicking him out, rehab, therapy, etc but he still uses a LOT, non stop all day long for 9+ years. Hes 25.
One of my sisters has extreme OCD that has debilitated her. She cant work or talk to people, and shes totally dependent on my parents. She never, ever leaves my parents house because she's scared to go outside. She washes her hands a million times a day and refuses to touch the phone. No one can walk behind her because if they do she takes a shower.