"We might hit a +10% on food price (and gaz) in a near future. It might get harsh[er] for big families and low income jobs, it's fine for people with good salaries."

However, those people with good salaries whilst seeing inflation running at 10% will likely not see a wage increase to match. And they may also have just bought a house...

At the same time as 10% inflation, the BoE may eventually have to raise interest rates to try curb capital flight from Sterling and make it attractive again.

Higher interest rates & stagnant wages lead to people not being able to keep up with mortgage payments (which have just increased and so has everything else but their wage).

This leads to defaults on mortgages at the same time as house prices are falling because people cannot service such large mortgages at 10% interest.

That will hurt a lot of people with good salaries in the short term.