I think we need to forget about things like built infrastructure failing, and suing over things like that. If a poorly maintained bridge that the public have access to collapses people will sue. Doesn’t matter whether your on a bike, walking or driving a car.
Suing because you’ve fallen of your bike, without direct and clear recklessness or negligence of a third party is very wrong IMHO. It’s something I hope I’d never do.
But if your in a wheelchair and your family is facing poverty and a lifetime of struggle, then some lawyer say “it wasn’t your fault,I can get you £xxxx”. I’d like to think I’d pass the moral high ground test, but in all honesty I don’t know whether I would 🙁