This will be nothing more than "feel good" legislation. You'll have to register your son's toy drone. What a joke.
It *does* open the door to respond and take action about reckless or
nuisance flying however. A neighbor complains about a quad flying
around in his backyard. Cops respond, locates the operator and ask to
see it's registration. No registration? Goodbye quad.
Neighbor to police; "There's a toy helicopter flying over my back yard."
Police: "So what?"
Neighbor: "Well, it's interfering with my reasonable right to privacy."
Police: "How?"
Neighbor: "Because the owner can see what I'm doing in my back yard."
Police: "Well, couldn't they do the same by looking over your fence out their bedroom
window?"
Neighbor: "Well, yeah, but isn't it illegal for someone to fly a toy helicopter over
my back yard?"