My Dad was blind and some of the wheelchair accommodations (sloping curbs) caused him some real challenges. He walked a mile or so to work when there wasn't any snow on the ground. He was unusually well adapted. It is easy to dismiss the value of these accommodations. The cost can be unreasonable, but it makes a huge difference. Before the ADA and anti-discrimination laws the handicapped didn't have any recourse from being excluded from things we take for granted. Dad showed up for his first day of college and they told him to go away. He somehow convinced then he wouldn't get in the way and they figured he would just give up and go away. It was pretty tough in then.
Oh, and having said all this, I agree with the OP on the curb outside the gun shop.
