Clara, I wore them to a concert the other night, and walked several blocks to/ from the venue. Because they are clearly not high quality, I've noticed a variance (beware, I have no idea what the actual terminology is for shoe anatomy, so this will sound utterly ridiculous).
On the buckles, the pin do-jibby that goes through the holes on the strap to hold it in place, varies - on my black ones, the back side of it isn't quite closed and has a pointy bit that kinda stabs me in the ankle. I covered the backside of the buckle with a bit of mileskin and presto, no problems. On my tan/camel/ whatever you call it ones, there is no edge, and I have not had to do that.
I have never had a problem with going barefoot in shoes - I blame all the Gidget movies I watched as a kid, where she rocked Keds sans socks -but I also have the world's least fussy feet. While these are a little swamp-foot due to the pleather, it's not too bad, and I had a bit of rubbing on my pinkie toe on the right, but no other problems to report. I haven't yet worn them with socks, but I am looking forward to styling them with tights when it gets cooler. Along those same lines, I'm looking forward to playing with these with tights and socks, too, for a very different look