Having researched football fan behaviour since the 90s, it's become clear to me that (a) standing in seats has become more prevalent, (b) there is strong cultural resistance to attempts to force all fans to sit, (c) celebrating in seated areas can lead to injury. pic.twitter.com/UpHrYO1g9v

— Geoff Pearson (@Geoff_Pearson) April 13, 2018