In my opinion its safer than most but you definitely dont want to hit anyone with it, it will still cut them but light years safer than a 5" no comparison there. I would let someone hit me 10x with a TP3 before getting hit 1x with a 5". What I personally do is fly whoops and powerwhoops around my house and property because of kids and dogs playing. Other than one hair tangle on my 4 yr old (lesson learned there) no incidents and no complaints from neighbours. A powerwhoop like Mr. Shutterbugs is ideal for a quiet and truly safe option and flies outside better than you would think.

For the TP3 I fly it at soccer fields parks etc when people arent very close and its small and quiet enough that I've never had anyone complain. I think thats its perfect environment. These days its also perfect for ripping around empty spots that are normally busy like mall areas etc. Surprising how many cool spots are accessible right now!