Yes, the attitudes are often more restrictive and difficult to deal with than the physical barriers. I have another "them" story, but mine was at the other extreme. I'm a lifelong wheelchair user, and as such I have very strong arms and get around very well with no assistance. At Spring Awakening last winter, an usher asked if I wanted her to push me to my seat, which was only maybe 4 feet away. When I declined her offer, she snapped, "OH, so you're another one of THOSE!" You'd be surprised how cranky some people get over independence. Of course the best part is that this happened at SA with all it's mixed-ability glory. So, there's the other end of the spectrum- I didn't ASK for assistance at all, it was offered randomly, and when I declined it, I got a rude response.
Does anyone know what, if any, training theatre staff receive related to interacting with patrons who have different abilities? As part of my job I sometimes teach disability awareness/education programs to various business and community groups. One of the questions I'm asked most often is, "How do I know if someone with a disability needs help?" And my response is always, "If they ask for it." And usually that works out pretty well, but I guess not so much in the case of the lady asking for assistance getting to the restroom.
I can see the liability rationale in some cases. For example, I don't roll into a theatre and expect staff to carry me up the stairs; that's an obvious liability. But simply offering an arm to guide someone to the restroom who has requested that assistance just doesn't seem that risky to me, particularly given my misadventure with the usher wanting, apparently desperately, to push me to my seat.
My last question- Is it clear that such assistance is not offered up front? I'm still rather new to the Broadway experience (only an annual trip over the past 4 years so far), but I seem to remember seeing a note somewhere (theatre's web site, maybe?) that assistance is not available inside the theatre with activities such as navigating steps, etc. I've never looked for any such information for people with vision impairments, though. (I'm also assuming that web sites for theatres and shows are accessible for those with such needs to even get this information, which maybe I shouldn't assume) At any rate, I think total transparency about potential barriers is needed in general. So often establishments, not just theatres, seem reluctant to be completely truthful about their accessibility, and this makes it difficult for those of us who have different needs to make plans and decisions based on our needs and comfort levels.