Most are posh, well, privileged anyway. Last I looked only 1 per cent of private school pupils in the UK didnt pay a penny in fees, just over 5 per cent received bursaries. About a third received some form of financial support thru educational excellence. So most families do have to pay a fair whack, £1000s per term (nottingham high school is £7k plus per term!) so out of the reach for many. Bamford's dad was an architect. I know plenty of them through a former job and a distant relative, all are absolutely rolling on it. Private education opens doors for many, doors which are not accessible to most of us state school plebs.
By the way, I wasn't talking about his football ability...though I do know most private schools have fantastic sporting facilities, great coaches and sporting contacts which open doors of opportunity. Of course, you do need to be talented to take advantage of them, but it doesn't half help to have those opportunities available to you.