We saw barefoot people at the park last time we went. I stared.
I just gave Little Miss the "I don't care how far west we move, young lady, we wear shoes out and about!" speech as we did our errands.
We do not, for the record, wear shoes in our own house. We went for dinner recently with some friends, the very same friend I had discussed "shoes in the house" policy with regarding the great state of Texas, and I took her advice, looked down and saw her in her shoes in her kitchen, and left my flats on. I was so damn proud of myself. Now I just need to get a tasteful sign printed for my entryway: "Take off yer shoes fer crap'ssake, whattaya, savages?" and hang it.
I love to be barefoot, though, and am barefoot in my own lawn often enough to be rather covered in ant bites by summer's end.
Totally missed the "why": Because. Hah, no, really it's a cleanliness issue. Shoes outside to protect our feet from the grime, off inside to protect our floors and therefore ourselves from the outside grime.