Children are always likely to learn something about themselves that displeases their parents. This can be anywhere from sexual orientation to religious inclinations. As a society we can and should enable this exploration - it only makes for a better outcome. Any society that can ongoingly say that critical thinking has led to the desired outcome is like (IMHO) to succeed and grow.
I fail to understand how we've moved from free speech to lack of privacy in such a short period of time. Today in many places, people are arrested for covering their faces in public - though not in the winter where such gear is warranted. People are arrested for expressing views (frequently violently, but not always) that are aligned with many, and abhorrent to others. Privacy would and should allow such exploration.
To me this is fundamental we ought be teaching, much like basic finance. Bother are important to get through life, and the ripple effects will be enormous. Clearly I have a bias.