That’s kind of the point of private schooling. It’s not that you won’t be aware of modern securlar culture, just that you will be taught to restrain yourself.

My admittedly anecdotal evidence is that you won't be taught to restrain yourself but to deceive certain individuals such as your parents regarding your behavior while acting without restraint behind their backs.

Restraint isn’t never committing an action, it’s doing so when it is appropriate. It’s rarely appropriate to sing dirty songs infront of your parents, but it’s fine to enjoy them.

That's pretty good training for adulthood, which is full of different spaces with different expectations.

There's a lot that your boss never need know...