I don't understand why anybody still wears shoes with protruding cleats that are difficult to walk in, you can get SPD two hole shoes with the same construction of so called road shoes but you can walk in them, the only difference being a few grams in weight for the soles, they also allow the use of double sided pedals IMO the easiest to use.
I started with road clipless when they first came out, I used Look pedals for many years, so have extensive experience of both systems, I won't be going back.