My baby is super tiny, no shoes would stay on her. At 7pm tonight, it was still 111 degrees in my back yard. I'm not putting socks on her. No one has said anything to me.
However, I did have one grumpy CM at Disney World say something to me about DD2 on our last trip. She was exactly 12 mos and couldn't walk, yet. She either stayed in the stroller or was held the whole time. I brought little soft soled sandals with us (she, also, had tiny feet and was still wearing 0-6mo Robeez), but I had left them in the stroller. Anyways, he seemed to be having a bad day and asked where her shoes were because you weren't supposed to be at DW without shoes. I said they are in my stroller, I can go get them, but she doesn't walk, yet. He said, no, that's fine, but next time put them on her. It was July, so it was hot, no one else ever said anything to us about the shoes.