The UK already has disability benefit, although I notice that one can introduce it as a new policy?
The UK should start off with a deficit - I think the income tax rate should be set much lower at the start to allow for this. The average person definitely doesn’t pay 40% income tax. As income tax is not simulated as a sliding scale, perhaps the rate should be the UK average, taking into account personal allowances etc. I’m not sure what proportion of an average Brit’s salary (25000 GBP) goes on income tax? Whatever that proportion is though I reckon should be the rate set.
I also notice VAT isn’t 20% in the game? I’m enjoying playing it but it would be nice if things were more accurate.