One of the largest groups of individuals without health insurance is young adults. Between 2003 and 2009, 24 states passed legislation that requires health insurance policies with dependent coverage to cover children between the ages of 19 and 24; the Affordable Care Act of 2010 added such a provision nationally. Because these laws have increased the rate of insurance for young adults, they reduce the need for health insurance coverage from a full-time job. I present a model to illustrate that these laws reduce the value of full-time work. Then, I use a quasi-experimental strategy to study how these mandates impact rates of employment, choice of full-time versus part-time work, and hours choices among young adults. Using the Current Population Survey, I find that dependent coverage mandates decreased full-time employment by 3% and increased part-time employment of young adults by 2.4%.