I think the original style would look pretty odd on a guy. I didn't see a photo of the neoprene style being worn.
I assume you put your toes through the holes in the front?
Otherwise there doesn't seem to be anything else to keep them on your feet.
Might look a little better than the original style but probably still pretty odd.
I've pretty much given up going barefoot in public beyond hiking/nature walks and driving.
GF is not supportive and I don't have the necessary mental "toughness" (for lack of a better word) to go it alone.
Final straw was having a purple-haired, nose-ring wearing clerk in a new-agey gift shop a mile from the beach tell me I needed to wear shoes in the store.
Might be broken glass on the floor, don't cha know.
Similar to what skedaddle posted above - I wear flip-flops or sandals in most public places now.
At least my feet are not cooped up in closed shoes.
But big kudos to anyone who barefoots in public with or without BF shoes.