Could you tell me how much an average meal costs for a family of four? 

Three course meal including wine from £ 5 up to £ 10 GBP per person. Breakfast costs about £ 2 GBP for a full English / Turkish breakfast. The price of beer is about 0.80- 1.00 GBP, varies in different bars. Pint of beer: £ 1.50 GBP