Medical Insurance Help Please

I was just sitting here thinking, with all the uproar about health care, why is it not possible for grown children to put their parents on their health insurance, even if they get SSI or SS parents put children until age of 18 on health insurance. Wouldn’t that help some, or maybe get something called an umbrella insurance well we each pay some REASONABLE amount like the teachers do. Now don’t you think this would be any good thoughts, just asking Any comments?