Is rehabilitation of felony offenders possible? Desirable?

I believe that to many of the offenders its is possible and can go through rehabilitation if they are a compassionate enough and want to change their lives for the better. Many of these offenders who serve their time and get out on parole commit recidivism. In the other hand there is a small group where they believe that they have to change their life for the better and for their families if an offender wants to he can rehabilitate. Yes it is their desire to do so. Many cant change thir life style since that’s what they have been use to many rehabilitation programs have alcohol, drug or anger management programs for rehabilitations and many comply and are able to rehabilitate but once they have done their time and are released many go back to their old days. Even though it is possible it all depends on the offender if they want to or not.