When you have a litigous environment - that's where you get the warnings on items - not because of a lack of common sense but because of lawyers seeing opportunity to litigate.
If the public as you argue are dumbed down - then why did we ask them for a referendum on such a huge issue such as Brexit? no idea, should have been left to those whom can do the economic modelling, however the media hyped it up and got the Neanderthals riled up whereby it became impossible for the government to ignore. I voted remain BTW , but accepted the results.
If the public is misinformed then who is it fault? When politicians tell lies and the media push these lies - then who is at fault? Where are the instiutions we can rely on for facts? Why do they get drowned out? is the public misinformed, or is it a case of the government trying to appease everyone?
The Government can give clearer guidance - so tell me in the situation where people cannot rebook and are told not to travel - what do they do? dont travel - simple, if they've lost money then they shouldn't have booked it. People have booked things knowing full well that this scenario was a possibility, we have been in this situation for over a year now, people need to use the brain cells god has given them rather than rely on an consortium of elected officials that really only has themselves and there buddies best interests at heart.