Sorry to disagree with you but I hope people would continue to support those wanting to enjoy the opportunity to fly in whatever form. We still need to support both the training and the dreams of those wanting a taste of the aviation industry. It should be the job of government intelligence and security forces to determine when training is being taken for the wrong purposes and not the job of those with simulators - frankly now we are post 9/11, I think if we have basic intelligence a terrorist should now be put off walking in off the street and trying to buy sim time.
What I am trying to say is yes we need security and yes we need to better at it but I often feel that some of these reactionary moves are giving people comfort when we haven't done much to improve security. I am very tempted to write here a number of errors I have seen recently but would probably be criticised for doing so - however I do not want to quote these to show where the weaknesses are but rather to show that we are giving people comfort by banning steel cuterly, locking cockpit doors etc when other obvious risks have been over looked. Ultimately most of us are safe in the skies because people do not want to cause harm for the most part not because someone took my pair of tweezers from me at the security screening point. Unfortunately I feel that your suggestion that people should not have access to sims is shortsighted - I want to encourage as many wanabee pilots as possible while genuinly managing the real risks of terrorism.
It is very understandable why we will no longer have flight deck visits but in the same way (as has been frequently stated here) very sad because it is quite frankly people's dreams we are dashing.