Especially if you can find it on sale, why not. It's the most passive protection you can do. Doing nothing is not protection.
I've had plates for a while. Unlikely to ever need them. The money I spent is long forgotten. Well under $200 for the set up. I had a daughter at Portland State 2017-18. Anything could have happened.
Plates have a Ninja wannabe stigma. So what? There are dozens of people in Portland alone that may have been saved if only wearing lower level plates.
This was my thought exactly. I saw a sale for a carrier with both plates and soft armor on AR500's web site and pulled the trigger. I don't think I'll ever actually need it but I have the room next to the safe so why not?