Anonymous question

The age of consent is simply an arbitrarily chosen age from which the state allows a “yes” answer to be considered “yes” without punishment; in other words, it is a crude and expensive-to-maintain crutch for common sense. In the absence of a state, nothing prevents a person from independently relying on common sense and independently weighing the consequences of their actions.

As for a “no” answer, libertarianism at no age allows it to be considered “yes” without punishment, which resolves the problem of violence.