That makes sense, thanks. I should think more about cases where design for accessibility just generally makes something worse. You could shoehorn that into the handicapped parking paradigm but it's not really the best fit -- the challenge there isn't allocating a limited resource, though there probably is an underlying limitation in terms of budget or attention. Those are frustrating because usually you can imagine a thoughtful solution that would make everyone happy, but you can't count on it actually working out that way.
I also don't think it's useful to try and learn much about pronouns qua pronouns social battles over them. Using the pronoun people ask you to use has become a proxy for all sorts of other tolerant/benevolent attitudes towards that person and the way they want to live their life, and to an even greater extent, refusing to do that is a proxy for thinking they should be ignored, or possibly reviled, or possibly killed.
I don't think everyone proxies it that way -- I know there are some people who are just old-fashioned, or passionate about prescriptive grammar, or have essentialist beliefs about gender but are libertarian about others' behavior. I think that if everyone had very high confidence that someone not using the pronouns they requested meant that at worst that person mildly disapproves of them but would still actively defend their civil + legal + human rights, there would probably be a lot less of the handwringing you mention, and we'd be able to learn a lot more about the fundamental intrinsic meaning of pronouns.
That's an amazing story, thanks for sharing! I would not have expected that outcome, and I hope the folks in charge take other lessons / hypotheses from it too.
I agree that allocation is hard and in particular that if regulations overboard with trying to ensure that there will always be more handicapped spots than there are people who need them, there's a point at which adding spots becomes net negative. As for the point about injuries, you're right -- I wasn't thinking clearly there and it doesn't apply, at least not in the current US implementation of handicapped parking.
I couldn't bite through a plastic straw if I tried. I'd have to gnaw on it for quite a while. I don't think this is a crux or anything but if you are able to bite through a plastic straw, and the straws you get are the same as the ones I'm used to, then I'm impressed.
From the tone of your text I feel like you're expressing disagreement, but as far as I can tell we're in agreement that not every accommodation is a win-win curb cut effect. I'm a lot more enthusiastic about the good outcomes of many accommodations than you are but I fervently agree that 1) sometimes there are negative tradeoffs and 2) it's harmful and dogmatic, not to mention infuriating, when people insist that this never happens or that negative consequences to non-users are unimportant. Am I missing someplace where my post dismisses the issues you're talking about?
I only know the very basics of design for screen readers so I'll stick to talking about your first example. I agree this isn't a case of the curb cut effect, because the curb cut effect by definition refers to an accommodation creating benefits for a broader set of people than it was originally intended for. Part of my goal was to make it clear that we can't always expect that to happen. If an accommodation makes life worse for non-users then it's at best what I'd call a handicapped parking effect, meaning that designers have to make a hard tradeoff. It's also possible that the people working on your bridge just didn't think about it or didn't try very hard, in which case it's not any kind of cleverly-named effect, it's just bad design. (but I also don't know anything about civil engineering, so I wouldn't jump to that conclusion in any particular case.)
As for financial cost: This post was meant to be about usage patterns around the accommodations themselves, so it doesn't go into decisions about whether to invest in any particular accommodation in the first place (except for the aside about curb cut effects increasing the total benefits). But I agree that financial cost is real and important. If someone believes that accessibility either is a fundamental moral imperative or has diffuse benefits to all of society, that should lead them to argue that it's worth paying high costs to make things more accessible, but it shouldn't let them get away with ignoring cost/benefit thinking entirely.
I've only ever read a little bit about this but my understanding is:
Good point that building for accessibility is often much cheaper than retrofitting for it!
For every plastic straw alternative, I've read a harrowing explanation of why it's awful for some particular kind of person. eg, this article
But paper straws and similar biodegradable options often fall apart too quickly or are easy for people with limited jaw control to bite through. Silicone straws are often not flexible — one of the most important features for people with mobility challenges. Reusable straws need to be washed, which not all people with disabilities can do easily. And metal straws, which conduct heat and cold in addition to being hard and inflexible, can pose a safety risk.
It's worth coming up with piecemeal solutions to each of these problems. But I think for this and many other cases we still need a universal fallback of, "if someone says they need [specific low-cost accommodation] in order to function normally, let them have it and don't give them shit about it."
I didn't know much about this subject when I made the original post, because I was interested in handicapped parking as a design pattern rather than a specific topic, but it turns out that the ADA has a very clear answer: 2-4% of all spaces, with a minimum of 1 space.
I don't know how they came up with that percentage or if there's any mechanism for updating it based on the prevalence of mobility limitations. Requirements are considerably higher for hospitals and rehab facilities, which does seem sensible.
This is a topic I'd like to learn more about sometime. I imagine it causes some tension for urbanist types because they tend to love accessibility but hate parking space mandates.