I'm not sure we can come to any real conclusions about the economic impacts of it until we get well into 2021, even if many businesses have been preparing for it.
> Whilst technically true Brexit has been happening since 2016, and people and companies have been making decisions based on it.
For many smaller companies there's not actually much they can do to prepare. They're just going to have to deal with the fallout when it happens. It seems to me that a lot of companies have gone with a "let's just carry on with business as usual while we still can" approach, and that they are going to get hit really badly when their product suddenly costs 20% more for a large proportiom of their customers.
Preparing for the worst possible outcome for me would mean relocating everything (both business and family) to the EU except for staff, whom would no longer have jobs. This is obviously an ass-ache so I'm not going to do that unless I have to.
On the other hand living somewhere with better weather could be nice so I'll take things as they come.