I rarely wear them for walking. Pockets seem more comfortable to me.
I like having the option of letting my arms swing. And then we have our shoulder exercises to do every time the Garmin beeps for another mile. Or sometimes I just don't have pockets.
Socks work well - no rights and lefts and plenty to go around...
also for thinner gloves, inside-out left = right
I don't like to use pockets. I need my hands free for when I trip and am going down.