In general we teach children not to do "anything that can raise an eyebrow" because it's wrong. Because the raised eyebrows of the adults who care for them are

In general we teach children not to do "anything that can raise an eyebrow" because it's wrong. Because the raised eyebrows of the adults who care for them are based in compassion, protection, and legitimate moral authority. And if they find themselves scheming about how to avoid the eyebrows then they are knowingly and intentionally doing something wrong, self-destructive, or both. And that is not the kind of people they are, or want to be. I think many parents would be profoundly uncomfortable spending significant money so that their children can evade supervision and guidance by authorities they are meant to respect. My own parents were pretty liberal, and it would still creep them out.