That's likely a legitimate fear for the very poorest but most of these people are used to not being able to make ends meet
Seriously you didn't write that with a straight face did you? The lack of understanding of the subject it conveys is astonishing.
Many many people who can make ends meet can't afford a five percent plus increase in the cost of living. They can't afford for one or both of them to loose their jobs, they don't want their children to. Those people who can make ends meet today, likely won't be able to tomorrow. They could lose their homes, everything,
So yes, if your in an industry that may downsize or leave the U.K., if you're just making ends meet today, there is something to be scared of in a no deal brexit.
However no deal is illegal, and the law will be applied by th government. Irrelevant of what Boris does or doesn't do. And the eu will grant the extension, likely for much longer than the three months. Irrevlant of the noise that always comes out of France beforehand.
So to be scared, no, not of no deal. Scared of what is going on in parliament, scared of the fact we might have a prime minister who would do that to th country given the chance, scared that the alternate is Jeremy Corbyn, yes that's something to be scared of.