Bluetooth not supported (Built-in and USB-BT Adapter)

I am interested in running and accessing bluetooth through Bash. However, after trying to use the laptop's Bluetooth chip and a USB adapter, both of which support BT 4.0, it seems like this is not supported.

root@localhost:/mnt/c/Users/guest1# sysv-rc-conf bluetooth on
root@localhost:/mnt/c/Users/guest1# sysv-rc-conf -list | grep bluetooth
    bluetooth    2:on       3:on    4:on    5:on
root@localhost:/mnt/c/Users/guest1# hcitool scan
    Device is not available: Address family not supported by protocol
root@localhost:/mnt/c/Users/guest1# service bluetooth start
    * Starting bluetooth                                                           Can't start daemon: No such device
    Can't open RFCOMM control socket: Address family not supported by protocol
                                                                     [ OK ]

Is there some property that I need to add in order for Bluetooth to be accessible, or is it due to a lack of permissions and accessibility to my hardware?

Start by reproducing the reported commands in WSL: sysv-rc-conf, hcitool scan, and service bluetooth start, using both the built-in chip and USB adapter if available. Investigate whether the Bluetooth hardware is exposed to WSL and whether the reported address-family and RFCOMM errors have an identifiable entry point; done means Bluetooth access works or the limitation is clearly documented.