GR, as has been pointed out, the Remain camp got the Civil Service to outline the risks attached to leaving and ignored possible benefits.
Many prices are controlled by the Government, in particular petrol, tobacco and spirits but also VAT above 15%.
Leave campaign has has said the EU £10bn could go to the NHS, it is assumed that farmers would continue to get their subsidies etc. But would they? Would/Could the NHS use £10bn efficiently?
Instead, if that money was returned directly to our pockets the average family, 3people, could pay about £500 pa less tax. But has the Chancellor told us? No.