You may have RKBA denied if your NEIGHBOR has issues, think about it. Or merely be required t have a certain type of safe and alarm system.
ATF is seeking bids on a giant database that will have not only stuff about you, but it will show your relationships with other people. So if somewhere in this web there is a person who is so disturbed he really should not be armed, we must be sure that he can’t get his hands on YOUR guns, isn’t that commonsense and reasonable?