Because in this modern, high strung, long hours, poor pay life that we have people choose different forms of escapism. A Dubliner might look at Bohs, UCD, Rovers etc. and think that following these teams might not reach the level of success that will help him leave his humdrum life, if only for 90 minutes. Hence they go for a United, Liverpool, Arsenal or Chelsea, a team that will let them dream that they are scoring the winning goal at an FA Cup Final. I mean lets face it, most EL fans wouldn't be arsed dreaming about scoring the winner in the FAI Cup final, let alone the barstooler.
Plus a Dubliner, for instance, could be a self hating Dub, and hence would want no association with the football community in the city, something which is about all we have to offer a barstooler, and so will turn to a club like Chelsea that allows them to escape the city, again even if it is just for 90 minutes
No, the standard of player in the league needs to improve, as those the mentality deployed by the managers on the pitch
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