I'm going to go ahead and blame San Francisco's glaring lack of a condoned gun culture for this one. Had the officer grown up around guns he likely wouldn't have done such a stupid thing and thus not utterly deserved heaps of posthumous ridicule.
I agree, but I'll go even one further. It's not just a San Fransisco issue, or even a California issue, its all across America. Kids today are not brought up in a gun positive culture. Guns are almost always portrayed as "evil" and are only in the hands of criminals, or "highly trained police officers". A generation or so ago, guns were seen more as what they are, a tool, no more evil than, say a crowbar, baseball bat, kitchen knife, car, hammer, etc. Kids plays "Cops and Robbers", or "Cowboys and Indians" with toy guns, Played with GI Joes (I still insist they are ACTION FIGURES not DOLLS! hehehe), had BB guns, even in city areas, and many kids participated in organized shooting education (like from the Boy Scouts). Plinking and informal shooting was considered an acceptable activity, and 22 rifles were a popular gift for a young boy. Of course, there was also a hunting culture as well, and many kids would go hunting with dad. I remember seeing lots of sporting ads and gun ads on TV or in magazines.
Western TV shows and movies were very popular at the time, and portrayed guns as what they were, tools in the hands of civilians, used as much or more in defense and putting food on the table as they were by the bad guys. Or used by the good guys like Sheriffs, Marshals, and the Army. Almost every western movie features a scene where some unknown folks (or bad guys) would ride up onto a civilian ranch, and the civilian ranch owner would grab his rifle or shotgun and make sure there was no trouble!
Today, in our crappy Politically Correct litigious society, there are few positive views of guns. The Anti's try to portray children's toy guns as the main reason for adult violence. Don't blame the parents who didn't raise the kid right, or the bad drug and gang infested neighborhood they grew up in, its all the guns fault!
In addition, The PC Police would have a heart attack if some neighborhood kids tried to play "Cowboys and Indians" today. It would now be called Overzealous land taking invaders and Native Americans, and the kids would be required to let the Indians,,,,,errrrrr I mean Native Americans win!
BB guns are evil, because a few juvenile delinquents have shot out some car windows.
Peta and other PC groups portray hunting as evil, so many kids nowadays never get exposed to hunting, or even fishing. Since a majority of the population now lives in urban environments, plinking, and target shooting has almost faded away from our culture.
Because of the lies spread about the Brady Bunch, and other antis, most parents today will not have a gun in the house for fear it would be used against them or their family. These lies are reinforced because the biased media hardly ever reports on civilians who use or simply brandish a gun in self defense. Those positive gun stories are not newsworthy. If an alien visited our world today and looked at the news, they would assume that guns are used only by bad guys, all guns are automatic, all rifles are "assault" types, have high capacity mags, only white girls go missing, and worthless celebs who party, date or breakup are more newsworthy than genocide, politics, the ecology, and world hunger.
When you see a gun in a movie or a TV show, its either in the hands of a Cop, a bad guy, or a "Good guy gone bad who will now use a gun for revenge" Couple that with the gansta music that glorifies gun violence, and kids today hardly see any civilians owning and using guns responsibly.
In addition, because few people today accept any responsibility for their own actions, or the actions of their families, many possible gun owners fear lawsuits should they use a gun in self defense.
Unless we start to see more positive gun owner/user role models, I fear our next generation may have no context of what is responsible correct behavior regarding guns.