Pumping more money into the education system wont help. Better parenting would. The education system of the UK is funded well enough, some *looks at SamuelRSmith* would even say it's massively over funded, the problem often lies in their homelife. Parents don't care, they don't see it as a priority to teach their children about sex... Some don't even feed their children correctly (chicken nuggets and chips for every meal).
In fact, I see more funding for education as pretty low on the priorities of fixes for these kinds of social problems.