Re: Can you blame us?
Well, I've gone through 5 passports for work-travel including 2 "fat ones", for a long time there was working in 3 countries a week across Europe (in my No Deal state!!! OMGWTF), and have turned-around and built-up businesses across Europe, America, Asia, and the UK. All in a NoDeal status.
I'm also a born NoDeal boy who couldn't even pop over from London to France without a separate stamped visa.
I've learnt to my cost that nearly every fed-to-children Australian stereotype re the world is wrong, so within a month of arriving in Europe and a few WTFisms just threw them away and absorbed what was actually happening rather than what people (especially the locals) shouted. This took a lot of time and work and, frankly, I don't think you COULD do it properly unless you'd actually WORKED and FAST across borders and at a very high intensity/little margin for error. (I think my France perspective turnaround was the sharpest; but also the violent inversion of what Germans will tell you is the relative "efficiency" of genius/efficient North Germans vs risible/useless South Germans vs bathetic (shudder) Austrians is another wtf (it's the other way round, in case you're wondering), as is the peculiar inversion of French vs German Swiss (vs French and Germans) in terms of getting anything done). I'm also a trained quant and researcher at the interface of economics and finance with pointy-end experience in finance and corporate turnaround (subject of/quoted in international investment banking journals, eg Risk, Futures & Options World, Global Corporate Treasurer, etc) who necessarily and compulsorily had his arse pinned to the wall on predictions vs reality, very publicly. So far: no mistakes.
I've also spent time at the pointy-end of various flavours of IT. Apparently the 7th person in the world to manage 4-way DRBD replication, for example (and reverse-engineered a much nicer way of writing the configfiles than is documented) ; and spent 2 weeks writing a P&L engine in a custom language I'd only ever seen the week before (+RDBMS) (then another teeth-grinding 6mths on the data-adaptors), which ran for a decade until the framework was retired without a single bug the entire time, but running according to my clients nearly 10% of Europe's M3 ; and...
The UK Remainers insist that everything I've seen and done will be impossible for NoDeal UK people or businesses, because they'd be treated like me, an Australian, or like some of my employers, American. Both NoDeal WTO, you might notice.
I've also learnt that newspapers are only useful for getting heads-ups of things that might be worth digging into properly.