that's up to her, does she want to clean up papers for the next 15 or so years? I'd prefer to have my dog go outside but some people prefer papers/pads.
She should be sure to keep him in her sights at all times using a leash. When she is not home she should crate him, if she is gone for long periods she should have someone come to let him out every few hours. she should be taking him out every two hours and praising and giving treats, off leash time or toys for going potty (whatever he enjoys most).