There is one problem: freedom is necessarily also freedom for people you don't like. There's no way to make living free for good guys, and limited for bad guys. Limiting things for bad guys, you also limit them for everyone — hopefully to a lesser extent. By putting a lock on your door so that a burglar won't enter, you also prevent your friends from entering.

There is a certain balance of downsides and upsides of limitations on freedom. If you move the "safety" knob all the way to maximum, you will get a high security prison with creature comforts. Indeed, being watched and tracked at all times, and limited in what you do and where you go, you can definitely be kept out of the harm's way. If you like the motion towards this, welcome to mainland China. (If you want an antidote, re-read the Brave New World.)

The price of liberty is eternal vigilance, that is, liberty is a somehow unsafe condition, else vigilance won't be needed. Some people prefer certain upsides of liberty more than certain upsides of safety. Such people founded the U.S., and it still shows here and there. (Not much, of course.)