This is very common in the US, even though it is not typically mandated. Technically you can just go take the test if you're up to it, and some people do exact

This is very common in the US, even though it is not typically mandated. Technically you can just go take the test if you're up to it, and some people do exactly that with no more training than they got from mom & dad. But a lot of kids take the classroom route. Not every parent wants to teach.