We dont have a Government who can control anything, so your idea of utopia wont possibly work, let me give you an example why, to work with young children at the moment you have to go through certain checks, CRB, etc, and beleive it or not, the Government thinks that if you pass this check our children are safe in your hands, and obviously because of the number of offenders who have passed these checks and still abused the children prove it wrong,, look at the state of the prisons, drug ridden, and these people are actually locked up yet can still access hard drugs,is there a link here................yes its called corruption.........and until corruption is nil, you cant have an Orwellian or any kind of decent society,
In the meantime the Govt will take knee jerk reactions, to try and convince the general public they are doing something.........so people will continue to vote for them, I mean good point about the locking device on a folder, it is safer and in a sensible society it would probably be obligotary for elf and safety reasons, but not quuite PC in present times.
Regarding licences what would that prove, nothing, except revenue for HM Govt, we have the licence already, if we need a knife to carry out certain tasks , we have the right to carry a knife....as long as we are responsible.
The last thing we need to do is to give the Police more excuses to stop and search us, and to be asked for a licence they would need to already know you are carrying a knife.