IMO, "sex education" in government schools should be banned altogether. That's the parent's job.
If I recall correctly, sex education back in the 1070’s began in 9th or 10th grade and was called “Health.” It was very cut and dry and biological without the leftist indoctrination. We were taught about ovulation, sperm, pregnancy, STDs, and puberty issues. We were also taught the difference between heterosexuals, homosexuals, transvestites, and transsexuals — not in an manner that advocated the LGBTQ lifestyle; but that a small percentage of the population has their “wires crossed.”