ive seen this at plenty of casual places.

seems to me it would be even more common in more rural areas(smaller towns etc), but again its plenty common in DC metro at casual places.

its never bothered me at casual places, whether thats just good timing or they actually try and gauge whether it would be a bother i dont know. so that also makes it hard for me to try and remember if ive seen the same thing at casual places in other areas.

ive certainly never seen it anywhere at a nicer place.