How do I know if Bluetooth Pairing Request was accepted?

Hi,

I am using Swift 5 to make an iOS application, which connects to the BLE device to read characteristic and also write to the characteristic. I am able to read and write conviniently when I hit 'Pair' to 'Bluetooth Pairing Request'. My questions related to this are:

1. Can I avoid getting this Bluetooth Pairing request and have my app seamlessly connect to the BLE peripheral?
2. If not, can I get the response of the user to this Bluetooth Pairing request (Cancel/Pair/No response)?
3. Since my application needs authentication in order to read and write characteristic values, is there a way I can check if authentication is present? (For me calling CBCentralManager.connect(peripheral) connects to the BLE device irrespective or the authentication, but I am not able to read and write if 'Pair' button wasn't initially selected and I would get CBATTErrorDoman, Code=5 "Authentication is insufficient")
4. I just want user to hit 'Pair', only then user should be able to access other features in the view, otherwise, app should check the authentication. If there is insufficient authentication, I can take it to different view (I can handle this after this point)