Why do DUI drivers get more slack against the safety of children than sex offenders?

People tend to believe that preventing those who have committed sex crimes should not be allowed to have any contact with children, no being a life guard, Pee wee football coach, or Camp counselor with the ideal of not taking any chance another child may be harmed. So why does society gives people with DUIs many chances, sometimes, to get their license back? I can’t remember a month going by I did not see at least one story on the evening news where some inebriated person smacked a person on the street or t-boned some vehicle killing a kid and many times one or both the parents. Breaking it down logically most people who commit a sex crime against a child knows the child they are a relative or a friend. As bad as it is, 80% or better the child lives on. The person who is under the influence don’t have to know the child, or even his parents and many times the child is dead, or at best orphaned or crippled after the encounter. To top it off, when they are on the road or living on your street there is no way to know who they are or what they are driving. For the sake of safety for the children and the greater populace why not day to those behind the wheel “one and done” take the bus for now on?