- Location
- Scottish Highlands
It's a very debatable point as to what is reasonable. Yellow lines for pedestrians to walk within? Padded armoured suits to wear? There really is no limit.
To be fair, it's fairly well enshrined in law what is reasonable and what isn't. Edwards vs NCB 1947(?, I'm rusty on dates) introduced the concept of reasonable practicability, which tells us that we should balance benefit against cost, and the sky is not the limit. Various other cases since then have given us a value for a human life that we don't know (£2M-ish) and hence we can decide if its worth spending £100k to reduce an already low risk to even lower (probably not), or £85 to reduce a fairly high risk to something much smaller (probably yes). Not many people or industries would quantify everything like that, but there is a few that do and it is recognised as a way to justify adding every bell to every whistle (e.g. padded armour suits).