no different to all the Citeh shirts that have popped up in the last few years. Probably less puzzling given they're a London team. Growing up in the area there were always more Utd, Arsenal, Chelsea, Spurs supporters at school. Only really in recent years that Palace is the majority (going by who the kids at my children's junior school support). What's also interesting is that some of their parents who support other clubs, are bringing their kids up to support Palace.
Was chatting to a black fella from Croydon not that long ago and when Wright moved to Arsenal, his whole family started supporting them over Palace, such was Wright's status in the black community of S London.