If things worked the way they should you don’t just confess your sin and go about your day. The priest assigns a penance. We are at the edge of my knowledge, and I would love for a Catholic to chime in, but I know penance can be harsh, especially for a grave sin. I’m not sure how it works in practice.

The idea is certainly not to just allow it to continue. Here we get to obvious failings of the Catholic Church. But, honestly, it’s not like the government is that great about protecting children from powerful men either.