Two step authorization & Passcode ?

You should set a 6 digit passcode on your phone, as well as Touch ID in Settings/Touch ID & passcode. Each time your phone goes to sleep you either need to touch the HOME button using a finger you registered when setting up or enter the passcode you set up.

Two factor authentication protects you Apple ID, not your phone. You generally only need to enter it once when logging in to your Apple ID on each device you. Log in from.

Yes. That’s what “2 step” means; there are 2 unrelated codes required to access the function.

Passcode without TouchID is not bad, but having no local authentication lets anyone stealing or finding a lost iphone access all of your data (or plant spying software then returning) without any challenges.

My wife’s hasn’t worn out in 5 years. And you have to press either that or the side button to unlock the screen anyway.

the Home button on an iPhone 8 is not a physical button, BTW. It is touch sensitive.

you need to either touch the HOME button with your fingerprint or enter the 6 digit passcode every time you want to unlock the phone.

Age has nothing to do with anything. I’m quite a bit older than you.