I've been following (without commenting) this thread since it opened. Some interesting debate. I am one of those that thinks following rules isn't especially difficult, and don't see much point in arguing about it. Football grounds have been all-seated for 20+ years now, so we've all had plenty of time to get used to it. Standing up when we score (or for some other major moment of excitement) is a spontaneous and understandable reaction. The rest of the time - just sit down.
To your point JF, about MPs and authorities being unwilling to consider standing areas, I think it boils down to the fact that nobody wants to be "the person" who initiates standing areas because of potential liability in the case of something going wrong. The findings and resultant changes of the taylor report were undoubtedly overkill, but if you take a step back, we haven't had another hillsbrough or Bradford incident since, so why would authorities want to "reverse" anything? The backlash from Hillsbrough is still going on today. I remember seeing a headline quite recently that somebody was in court regarding his actions on that day. Imagine being the MP who pushes for standing at grounds, knowing that if something goes wrong you could be publicly shamed, sued, and have your life ruined some 25 years after the fact...
On a separate note, try watching a sporting event here in the US at any stadium. Food vendors constantly walking up and down the steps selling, people getting up and down throughout to visit the concourse. It drives you potty. I don't even bother going to stadiums here because the experience of watching is completely ruined by having your view blocked every 30 seconds!