Do not Catholics sin because they know they can get absolution in Confession?

Does a man break his leg because he knows that a doctor can set it? Catholics regard sin as a very great evil and no Catholic thinks that he is morally free to commit any sin, with or without Confession. If he does commit sin he knows that he can get it forgiven provided he repents and determines to try to serve God for the future. Above all he knows that Confession gives him no permission at all to commit the same sins again, and if he has the intention of doing so he knows that the absolution is null and void. Might I ask whether Protestants can sin because they know that they can get forgiveness without Confession? Or it there no forgiveness for Protestants?

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty