Every dog is different and will mature and be able to be trusted in his or her own time. Once you start to notice that your dog is not constantly getting into mischief and needing to be watched while you are home, you may be able to start to give some more freedoms. Start small and short! Using a small room or baby gates, you can try leaving him in a small area that has nothing on the floor that causes temptation. Leave for a short period of time such as a coffee run or quick walk around the block and see how your dog does. If he does well, you can slowly start to increase the space you allow your dog to have and the time you are gone.