As for "bullet proof" or "bullet resistant" keep in mind that soft armor is designed to stop small caliber handgun rounds, generally .40 and lower. Thicker soft armor may stop larger handgun rounds. They WILL NOT, I repeat, they WILL NOT, stop rifle rounds. Some shotgun rounds will also defeat soft vests.
Military style ceramic plates are designed to stop roughly .308 caliber rifle rounds by shattering and thus absorbing the impact. The plates can generally only take one or a couple of shots before being destroyed, but they save lives. I've seen videos of men shot with rifles square in the chest in combat and the men survived with minimal injuries. I also know Soldiers who experienced the same.
Kevlar helmets are impressive at stopping handgun rounds, but don't stop rifle rounds.
For an example check
www.theboxotruth.com. They experiement with kevlar vests, ceramic plates, and kevlar helmets.
I have a concealable vest purchase from
www.bulletproofme.com for about $450 a few years ago.
I wore it religiously for a year but then got out of the habbit and it sits in the closet with the "go gear." I admit that I like having it for emergencies, but to wear it daily got to be a grind. While I think it is a good idea, and there are likely also benefits to lessen injuries in car accidents (many police officers have notably been saved from serious injuries due to their vests) and even other attacks such as blunt instruments or even slashings with knives (they aren't advertised as knive-proof but they are certainly as good as a thick layer of dense clothing. But wearing one now doesn't work with my schedule (showering and changing at the gym) and it's pretty hot here so it's just a PITA because it raises your core temperature noticably.
Anyway, in social unrest situation I would wear my concealable armor again for safety. I would also don it if I had to clear my house.
I also have military Improved Body Armor and ceramic plates. I've worn it more days that I care to recall in Iraq and in garrison. I've walked and rucked hundreds of miles in it. It weighs in around 30 lbs and is bulky and heavy. It doubles or triples the time to get on your feet from a prone position and you can't easily do a single situp wearing it. It's hot and heavy. The only circumstances I can see myself wearing it would be under real attack (either civilian or as a Soldier) where I have time to prepare - war or a huge civil unrest situation, or maybe if I KNEW there were armed criminals storming my house and I had time to put it on. Same holds true with the Kevlar helmet.