This made me think of my keyless locks...
My POPUP trailer has a VELCRO STRIP around the door setup so all I need to do is just slip my hand thru the Velcro and flip the lock on the inside...
I do this many times when bringing in groceries... Can do this much faster then laying down the groceries and fumbling around in my pocket for the key haha....
Forgive me for poking fun at your KEYLESS DOOR post... My pocket FOB for my truck sure gets used a lot... I also have the push button lock controls on the drivers side door to gain entrance as well... Just punch in the codes...
Roy Ken