Control access to your Public folder
You can set up your Public folder so other users on your network can access files in it.
Choose Apple menu > System Preferences, then click Sharing.
If file sharing is not already turned on, select the File Sharing checkbox.
Below Shared Folders, select your Public folder.
Below Users, choose a setting from the Everyone pop-up menu.
Read & Write: The user can see and copy files to and from the folder.
Read Only: The user can view the contents of the folder but can’t copy files to it.
Write Only (Drop Box): The user can copy files to the folder but can’t view its contents.
No Access: The user can’t see or copy files from the folder.