It really makes me mad too. Ultimately, the lack of sex ed makes kids more vulnerable to a lot of things, including sexual abuse.
https://globalnews.ca/news/5792939/effects-of-no-sex-education/
'McKay says that if a child does not know how to identify their genitals, they are going to be “less well equipped to report inappropriate touching or abuse.”'
And of course, if all sex language is coded in shame, people who are or may be abused will be that much less likely to speak up about it.