I always use it as an excuse to be comfy in sneakers--better for all the standing. I like the Skechers slip on ones since they're less sporty than lace ups. When it's super cold and rainy I have been known to wear my snow boots
Personally, if I'm going to shul and standing for long periods, that's not necessarily the same non leather shoes that I would wear for being child focused around around the house, and grabbing time to daven when I can.
To be honest, if I'm around the house, there's a good chance that I won't even be wearing shoes. I definitely wouldn't go to shul barefoot.
The lady I replied to said the REQUIREMENTS were different. Thats what I was responding to. Ive seen people walk to shul in socks.