Final answer:
The provided data does not directly answer the question about the percentage of high school seniors in Texas who will become parents, but it discusses family structures and sexual attitudes, indicating a potential for many to become parents over time.
Step-by-step explanation:
The question regarding the percentage of high school seniors in Texas who will eventually become parents does not have a direct numerical answer provided in the provided references. However, understanding family structure and trends can give some insight into the potential for high school seniors to become parents. Families in the United States have become more diverse in structure, with single-parent and cohabitating couplings on the rise. Additionally, modern attitudes among youth towards sex and sexuality suggest that a significant portion of them believe it's acceptable to have children outside of marriage. These factors, combined with general trends in family formation, suggest that many high school seniors may eventually become parents, though specific percentages for Texas seniors are not available in the provided data.