The average imigrant according to figures in the Independant newspaper (a quality paper, not the usual crap) had the average immigrant coming into the uk being between 25-35. These individuals were here to get jobs and are often employed in sectors where it is now difficult to get workers in the UK. They are net payers to society (pay more in taxes than take out).
Because of this the UK is better off because of the current immigration, no matter what the tabloid newspapers say.