How does other people downgrading their devices affect your life?
Citizens should run the latest iOS on their devices at all times.
The only exception is in cases where there are serious bugs or performance problems, in which case Apple shouldn't have released that version for that device anyway.
Deliberately running an old iOS version on your device makes no sense. It is a deviant behavior and likely to arouse suspicion of your other "activities" amongst your peers and the authorities.