You don't have to have a driver's license to OWN a motor vehicle, you must HAVE one to OPERATE a motor vehicle on PUBLIC roads.
A fast/dirty read of this thread leads me to think mostly what's being discussed is "firearm handling" and "firearms safety." Indeed these are crucial aspects of owning a firearm.
But currently, an equally crucial part of owning a firearm is understanding gun laws that apply to you. The laws regarding firearms have moved a long way from the concept of "shall not be infringed."