Your code seemed to be over engineered in regards to how observables work.

I refactored it into a Observable.create pattern for async usage.

I only noticed this because when subscribing to the event, it would only trigger once per permission instance, making flatMap usage quite limited.

e.g. usage:

locationButton.rx_tap
      .flatMap {
        return Permission.LocationAlways.rx_permission
      }.subscribeNext { status in
        print(status)
      }.addDisposableTo(rx_disposeBag)