I had an Indian colleague years ago, and she did take her shoes off at work. We'd sit down at a computer to pair on something, and she'd slip her shoes off as she sat down. I must have found that unusual, because i remember it clearly.
I have started taking my shoes off at work, but only a year or two ago. I think it's because i got a pair of heavy boots, and my feet can get too warm wearing them. I will walk to the printer in socks, but i have a pair of smart office slippers for going to the kitchen or bathroom.