Homeschooling

[sanantone]

Your belief is incorrect.

All states are somehow involved in sex education for public schoolchildren.

As of January 1, 2014:
22 states and the District of Columbia require public schools teach sex education (20 of which mandate sex education and HIV education).
33 states and the District of Columbia require students receive instruction about HIV/AIDS.
19 states require that if provided, sex education must be medically, factually or technically accurate. State definitions of “medically accurate" vary, from requiring that the department of health review curriculum for accuracy, to mandating that curriculum be based on information from “published authorities upon which medical professionals rely.”
Many states define parents’ rights concerning sexual education:
37 states and the District of Columbia require school districts to allow parental involvement in sexual education programs.
Three states require parental consent before a child can receive instruction.
35 states and the District of Columbia allow parents to opt-out on behalf of their children.

State Policies on Sex Education in Schools

Okay, so 35 states and the DC let you opt-out while 3 states require you to opt-in. Oddly enough, most of the states that don't have opt-out/opt-in are conservative. Most of them stress abstinence. I only saw one that requires the coverage of contraception, and even that one stresses abstinence over contraception.
http://www.siecus.org/document/docWindow...rmatId=267