There is a reason that Democrats worked long and hard for the health care reform act which has been dubbed Obamacare.
The real problem in this country is not that people might have to pay a small tax penalty (far less than the cost of buying health insurance) for failing to buy health insurance which they have the ability to buy.
The real problem in this country is that something on the order of one out of six, or one out of seven people at some point in any given year, don't have health insurance and can't afford to pay to receive the health care that they need - something that is sometimes a matter of life, death, or lifetime disability if not addressed promptly.
Obamacare addresses about 90%+ of the problem, mostly by creating strong incentives (most via the tax code) for businesses to provide private health insurance for their employees and for families who don't have employer provided private health insurance to buy individual coverage with private health insurance. This mostly takes effect in 2014.