Which is why these aren't built anymore, I guess. Especially the wheelchair example is a very good reason (I'd argue the other reasons can be largely considered

Which is why these aren't built anymore, I guess. Especially the wheelchair example is a very good reason (I'd argue the other reasons can be largely considered irrelevant, depending on the building/use case). So, they're neat, interesting, but probably irrelevant. But removing them for safety? That's just stupid - just like the article.