macdchip everything is regulated. Movies, music, your braai you had last time. Nothing goes without some form of control. The question is how much control do we really need so that it makes us or our society a better people? From your points:
1. FROM who's perspective?. from robbers who might plan to use internet, buy illegal weapons, or bring in stuff like cocaine. -> Lets ban cellphones. Here in SA they use them to rob the banks. Rape women. Steal other people's cellphones. Cocaine, drugs? Really think the internet brought cocaine to your doorstep? Very funny. Or better still the corrupt custom officials at the SA-Zim border who look the other way when given a wad of R200 bills so you can smuggle kids across (child trafficking).And that was the internet?
2. TO who? to your young brothers and sister, or kids, are you ok for your kids to chat with paedophiles and watching pornography online? -> porn was there before internet was given born. So was prostitution and gays and lesbians and nymphomaniacs and satanism and freaks and violent films and wierdos. Plus kids talk to that good uncle who buys you beer but turned out to be nutcase with hidden sexual urges for little ones. Lets ban them too :D
5. WTF? google is already rating sites like those for pornography and those selling illegal or copyright materials are being ranged very low, eventually to exile.-> rating does not mean I cannot find it. Zim banned the Scope magazine from Kingstons and guess what? It was on the street and from the guys who came in from SA. Salt and Pepper "Push It" was taken off air by ZBC but hey many copies in Look and Listen. I still download the latest series/movies off the net from sites Google does not even rank at all in their searches.
This is 2012 going 2013. If Zim is going to try to be like China, it wont work. We go no resources and the skills to implement such type of regulation. Reality or not, The Chinese spend enormous dollars and man power to run their "firewall" and we in Zim we still get bank sites getting defaced by geeks.
Good luck!