The current law (and it is LAW, not just conditions of entry, set by the Clubs) in England and Wales is set out in The Sporting Events (Control of Alcohol etc.) Act 1985, as amended - most recently by The Sports Grounds and Sporting Events (Designation) (Amendment) Order 2011.
The ban on...
I can only assume that you sit somewhere far away from me. The woman steward we have in our part of the North Stand has a real empathy with fans and achieves sitting down reasonably effectively, with a smile and absolutely no moaning.