Your thread has made me smile. I remember being 'in your shoes'.
My DD started walking around the 7-8 month mark. My parents were visiting from Spain and took a video, which they sent to my sister. Next thing I know is my sister, an experienced mother of three, all agitated on the telephone asking why her niece is not wearing shoes. I have just double-checked with the paediatrician, she told me, and she says not wearing shoes as soon as one starts walking results in deformed feet!
I sheepishly went off and bought some shoes.
Two days later I took my child for a routine check-up with the health visitor. She looked at shoe-wearing DD and, horrified, reprimanded me: Don't you know that wearing shoes as soon as one starts walking results in deformed feet?
I realised my DD did not stand a chance and she was bound to have deformed feet either way... so we did what seemed most reasonable to us: shoes outside, no shoes inside.
Fast-foward four years and DD's feet are not in any way deformed. Most Spanish kids wear (soft) shoes even before they walk. I did, judging by photographs, and have pretty decent feet. My DH has dreadful toes and did not wear shoes for a long time. Do as you please and as your child tells you; make sure s/he is comfortable and ignore everyone else.