Kind of silly to enforce the wearing of helmets on electric 2 wheelers when any adult motorcycle rider has the freedom to choose.
i wore a helmet on my motorcycles the whole time i owned them. First bike was purchased in NC. i rode there, in OK, VA, SC and MD. Helmets were required in all those states. HI is the only place i've ridden without mandatory helmet laws.
Having said that, i was in the Air Force through 1992. All USAF bases required helmets while on base. I believe that was the case on all branches' properties. In OK, I remember being told that military members must wear helmets both on and off military installations.
There were similar military rules for seatbelts before law enforcement started enforcing seatbelt laws more aggressively.
Even bicyclists are required to wear an appropriate helmet when biking on military installations.
At some point, I simply resigned myself to always wear a helmet on any bike, powered or not, as a way to protect my noggin and to set a good example for my kids.
My kids wore helmets while bike riding and rollerblading.