One of the first bits of infosec advice I give to my non-technical friends and family, when they ask for it, is to turn off background location access for all apps on their phones.
Needless to say, I know plenty of technical people who don't care about it.
because someone made background location access a "necessary" part of the the bluetooth stack?
The cost of opting out is very high.
"Mark of the beast"-- you want to participate in society, you need it.