In the caves, when eating leaves, piracy wouldn't be an issue. In fact, it wasn't for most societies until fairly recently.
In the middle ages, there were issues with printers trying to copy others' work. But in the end, using unlicensed intellectual property spread more knowledge around the world than we give credit for.
We wouldn't be in the caves if people found piracy appealing. In fact, millions of people steal intellectual property on a daily basis and we manage somehow. Even if we take your suggestion to the extreme, it would just mean a slightly different civilisation. But we don't have the capacity or the foresight to see, exactly how it would have changed the world, if intellectual property was free and easy to distribute.