At this point, it has been well-reported that Bluetooth is turned on upon following the software update to iOS 7.1. This doesn't really bother me as it is sort of a confirmation that that Bluetooth is operational and turning off Bluetooth the one time isn't a big deal.
What concerns me is that days after the update, I find Bluetooth turned on again, without me doing anything. It turns on while I'm asleep. Not good. I don't use Bluetooth very often.
Has anyone else experienced this?