Obamacare was a wide-ranging health care bill, so it likely impacted almost everyone in some way. For example, under Obamacare, all children under the age of 26 qualify to use their parents' health care insurance. A major aspect of Obamacare was expanding Medicaid, and if you live in a state that expanded Medicaid, then you qualify for coverage if you earn up to 138% of the federal poverty threshold.