They aren't doing that shit. Last time I checked, Sex ed is usually middle school or high school depending on the state.
Considering what the curriculum is becoming in various school districts, just imagine how far teachers are willing to take it.
I'm of the generation who took the SAT with a pencil and scratch paper - no calculators. How the heck does this advance our society? How much less math, reading, science, and history will these kids understand? They'll be voting in 12-15 years.
https://joesosnowski.org/you-decide/Grades K-2
Identify different kinds of families (e.g. nuclear, single parent, blended intergenerational, cohabitating, adoptive, foster, same-gender, interracial).
Define gender, gender identity and gender-role stereotypes.
List medically-accurate names for body parts, including the genitals.
Grades 3-5
Explain common human sexual development and the role of hormones (e.g. romantic and sexual feelings, masturbation, mood swings, timing of pubertal onset).
Describe the role hormones play in the physical, social, cognitive, and emotional changes during adolescence and the potential role of hormone blockers on young people who identify as transgender.
Define and explain differences between cisgender, transgender, gender nonbinary, gender expansive and gender identity. Explain that gender expression and gender identity exist along a spectrum.
Differentiate between sexual orientation and gender identity.
https://www.northjersey.com/story/news/education/2022/09/22/nj-sex-education-curriculum-how-schools-will-teach-avoid-discipline/69510211007/https://chicago.suntimes.com/2022/8/11/23300381/sex-edhttps://www.fox6now.com/news/wauwatosa-school-district-proposed-curriculum-vote-monday