Final answer:
The specific percentages regarding teen parents living below the poverty line and high school graduation rates are not directly provided in the data. The question pertains to consequences that could potentially align with the increasing trend of single-parent households and the challenges faced by first-generation college students.
Step-by-step explanation:
The question regarding the percent of teens who choose to parent their child and live below the poverty line or do not graduate from high school does not seem to be directly answered by the provided information. None of the details offer specific statistics on teen parents' poverty levels or high school graduation rates. However, the provided information does indicate increasing rates of single-parent households, the living arrangements of young adults, and the challenges faced by students who are first-generation college attendees, which could potentially correlate with the life outcomes of teen parents.