* Religious groups: Many religious organizations believe that sex education should be the responsibility of parents, and that schools should not provide information about topics like contraception or sexual orientation that conflict with their religious beliefs. They may argue that comprehensive sex education promotes promiscuity or undermines traditional values.
* Conservative political groups: Some conservative political organizations and individuals oppose sex education based on concerns about age appropriateness, the perceived promotion of certain lifestyles, and a belief that parents should have the sole right to educate their children on these matters. They may advocate for abstinence-only education.
* Parents' rights groups: Some parents' rights groups advocate for greater parental control over what their children are taught in school, including sex education. They may argue that certain topics are too sensitive or inappropriate for certain age groups, or that the curriculum does not align with their family values.
* Individuals concerned about age appropriateness: Some individuals, regardless of their religious or political affiliation, may believe that certain aspects of sex education are not appropriate for certain age groups. They may worry about the potential for misinformation or the negative impact on children's emotional development.
It's important to note that the level of opposition often varies depending on the specific content of the sex education curriculum. Some groups may accept age-appropriate discussions of reproductive health but oppose instruction on topics like gender identity or sexual orientation. There is also a significant difference between comprehensive sex education (which covers a wide range of topics) and abstinence-only education. Opposition is often more strongly directed towards comprehensive sex education.