Parents bring a child into the world they there have the responsibilty to take care and guide them to the best of their ability. In order to do that they should provide as much age appropriate information available for those children to make appropriate individual life choices. Being a parent does not mean you own someone and you should not try to force a child to live contrary to his.her human nature. A school should not b hiding anything they r doing at ......school...from parents. If a parent decides to opt out of these types of informative lessons if they feel them inappropriate. However the Internet and public library should have age appropriate information available for curious teenagers to inform themselves