Quick way to switch between pasword-protected screen and no protection? When I have my android phone with me, I don't want it to be password or pin protected.

When I don't have my android phone with me, I want it to be password or pin protected. 

Switching between the two cases requires everytime going into Settings -> Lock Screen, to enter new password or pin. Is there a quicker way to switch? Thanks.

My Android phones are 4.4.2 and 4.3 respectively.
That does not exist. You could change the lock screen type in Settings?
That what you are searching for, is that the phone "knows" the owner. But the cell phone is not pure artificial intelligence. Or on the other way you need a small piece of hardware that is connected with Bluetooth with your phone. That means that little piece of hardware needs to be all the time with you. And again that might be available but I'm unfamiliar with it.