People don't kill people, guns do!

Even the army standard M16 is a 3 shot burst.

NRA News shamelessly promotes viewer-submitted pictures of children with firearms, some engaged in unsafe gun practices
Meanwhile, these accidental shootings by children in the U.S. happened within just one month: August 2nd - September 2nd, 2014.

A 7-year-old boy shot himself at his family’s homemade shooting range in California:
The boy was reportedly firing a single-shot, .22 bolt action youth rifle under his father’s supervision. When the boy cried out, his father noticed there was a small hole in his shirt, then blood.
A 9-year-old girl accidentally shot and killed her instructor with an Uzi in Arizona:
"(The mother) was visibly upset and shaken," the report reads. She said "the gun went off and saw (her daughter) drop the gun. (The girl) turned to her and told her the gun was too much for her and it hurt her shoulder. (The mother) said no one knew Vacca was shot until the other instructor ran over."
A 4-year-old boy in Texas was injured after he found his parents’ handgun:
The boy climbed into his parents’ bedroom closet in their home on the 600 block of Destin Drive and found their .38-caliber gun on the top shelf, Fort Worth police said. The gun was loaded and unlocked when the boy pulled the trigger.
A 13-year-old boy was shot and killed by his 14-year-old friend while they were handling a rifle in Oklahoma:
Police say initially the other teens said the victim shot himself with the gun, but after questioning them separately, police say the 14-year-old accidentally fired the gun … Police say the rifle used was stolen from a home in Midwest City in 2011. Right now investigators don’t know how the gun ended up in the teens hands.
A 9-year-old girl died after shooting herself with her father’s gun:
"The young lady was searching or looking around, found the weapon, was pulling it out of the drawer an the gun discharged as he was pulling it out of the drawer," said Police Chief Rex Brown. Brown said the bullet hit her in the head.
A 7-year-old boy in Tennessee shot and killed himself with his grandfather’s pistol:
Hills’ grandfather, Dana Buck, said he was in the living room watching TV when he heard a shot. He ran to the bedroom and found Hills, who had accidentally shot himself with a pistol.
A 3-year-old boy in Chicago, IL was critically injured after finding his father’s handgun and accidentally shooting himself in the head:
Police said the boy was in a closet with at least one other child and playing with the gun when it discharged, hitting the boy in the head and leaving him in critical condition. Police said the boy’s father took the gun, the remaining rounds and fled the scene.
In Tennessee, a 10-year-old boy shot himself in the foot while hunting:
According to TWRA, the 10-year-old was dove hunting at the Buffalo Springs Wildlife Management Area in Grainger County when he accidentally shot himself in the foot. He was taken by medical helicopter to UT Medical Center with non-life threatening injuries.
A 3-year-old boy accidentally shot himself in the face in Atlanta:
The 3-year-old was taken to a local hospital for treatment, according to police. The newspaper spoke with a neighbor, Ivey McMullen, who said she “heard people screaming that ‘the baby shot himself.’”
A 7-year-old boy in Ohio shot himself while playing in his grandparents’ backyard:
Police said the boy was in his back yard on Impala Dr. with his brother. They found a gun, and began playing with it … Colerain police said that the boys live with their grandparents, and there does not seem to be a lot of supervision. Officers will also look into how the boys were able to get a gun so easily.
A 15-year-old boy shot himself in the face after he found a hidden key to his parent’s gun safe while they were at work:
[He] found a hidden key to the gun safe and was able to get to a handgun inside. The 15-year-old told police that the gun went off as he was putting it back in the gun safe … Police said the parents told them they didn’t think their children knew where the gun safe key was hidden.
So how’s our country handling this pattern of violence resulting from children handling firearms? A child can still legally own a rifle or shotgun in 30 states.

might well have been averted with some simple, reasonable gun restrictions (i.e. age requirements for using Uzis)

There are a million ways to die. Another million laws will not prevent that.

"laws" are not passed to STOP unwanted activity

they are passed in order to prosecute unwanted activity