Yes. For example, if there are many stories about physical abuse in schools, lawmakers can create laws to ensure better supervision in educational institutions.
One way could be to have the child adopted by a trusted family in a remote area. Another option is to give the child a magical charm that makes them invisible to certain people. You could also have the child live in a hidden village protected by powerful magic.
Well, one way could be to change the child's appearance and give them a new identity. Another option could be to send them to a remote location that's not easily accessible. It really depends on the context and the specific plot of the manhwa.