A sample of 218 black low-income mothers is used to investigate the mothers' perception of their need for family life and sex education for their entire family, attitude toward public school, family life and sex education, and the concept of the population crisis. This study focuses on low income families because this population has been most affected by lack of family life education and sex education, given the negative value placed on large unplanned families, unstable homes, and generations of poverty in the U.S. The findings reveal that mothers are willing to support family life and sex education classes for themselves and their children. The association between sex information and sex experimentation is unrelated when controlled by age and level of education. Other findings are that small families are becoming popular and that participation in a family planning clinic significantly influences the small family concept. Mothers in the study who indicate a willingness to attend a family life and sex education class are significantly younger and have fewer children than mothers who indicate 'no' to sex and family life education. (Author/AM)