By Louise Watkins Where the City’s movers and shakers have their say. Today, Louise Watkins, head of risk strategy and co-chair of the Social Mobility Network at Blackrock, takes the pen to talk about how she broke the class ceiling, and how the City can better support social mobility. The City’s class problemComing from a small mining town in South Wales, I struggled to feel like I belonged in the City. When I joined Blackrock in 2008, I was fortunate to have a boss who understood how my socioeconomic background might impact my sense of belonging at work – how this might hold me back, but als…