Puppies become potty trained at different ages. Even if they are potty trained, and trustworthy about not having accidents in the house,some dogs can not be trusted having free roam because they like to swallow things, such as socks, toys, etc. It all depends on your particular dog. My youngest wasn't completely trustworthy about things until she was 10 months. They still will eat junk outside-sticks, sometimes a leaf, or cat poo(stupid cats sneak over here at night!)They have 18 acres and come on this side of the fence!!AARGH!