Final answer:
An unmarried child under a family group accident and health policy is provided coverage until the age of twenty-six, due to reforms aimed at expanding healthcare access to more Americans, including those previously uninsured.
Step-by-step explanation:
An unmarried child under a family group accident and health policy must be provided coverage until the age of twenty-six. This provision is a result of healthcare reforms that aimed to expand coverage and provide more Americans with access to health insurance. It transformed certain programs, such as Medicaid, to widen the range of eligibility and included subsidies to make premiums more affordable. Additionally, reforms have made it so insurance companies can no longer reject individuals for preexisting conditions and have lifted annual and lifetime limits on insurance payouts.
This reform has significant implications for both the uninsured and for families with children. For approximately 32 million uninsured Americans, these changes mean greater access to necessary health services. The law's inclusivity allows children, up to the age of 26, to remain covered by their parent's health insurance policies, ensuring continuity of care during crucial years of early adulthood.