They have a trigger safety. It looks almost like a tiny trigger within the trigger. Essentially means that it will only fire if you pull the trigger. It makes sense for trained personnel since they won’t be pulling the trigger unless they intend to fire and mistakenly leaving a safety on when you need to shoot can get you killed. Still seems very sketchy to me even though I understand that logically, it’s just as safe.
I would argue there are limits. An art piece being used as a suicide booth falls into the category of not being essential enough that it must remain openly accessible to the public. A bridge or train tracks being used for suicide should not be closed off.