It all boils down to being reasonable and understanding that not all fans have the same ability to stand for long periods, stand at all, or to see whether they can stand or not.
Too many people are so self centred and selfish that they couldn't give a fuck if they cause other peoples enjoyment to be spoiled or not.
I know most will feel if someone is not as capable of getting a fair view of the game, that it's that individuals problem and tough shit, but it's just another example of society's intollerance and general neglect for others not so: young, fit, tall, hard, able, and in fairness is not the type of behaviour I have come to expect from City fans in the many decades I have been watching our great club perform.
I enjoyed standing in the Kippax more than at any other time as a blue, so completely understand how good the experience of standing at games is, but now suffer for days with back pain if I have to stand for a prolonged period, so at Old Trafford last year I had a nightmare, and subsequently won't be following City away again.
Ok, so I don't have any problems in my seat in 304, but can see how difficult it is for others with similar afflictions in the blocks in question, and feel in the times we live in sometimes we put too much emphasis on our own experience and without even reasonable thought for others less fortunate.
I'm sure that those selfish enough to think the situation I describe is tough titty, would maybe change their tune if the Harlem Globetrotters were sat or stood in the row in front of them, or if they took their kids to the Odeon to watch the latest blockbuster and St Helens rugby league team stood throughout the film directly blocking their family's view, but hey, I bet they would as is often the case in such situations, keep stum, grin and bear it, certainly in the case of the Rugby lads!
Have some tollerance and show at least a little courtesy, it's not the fault of the kids, dissabled, elderly or those short in stature that they don't allow for supporters to stand at Premier League games, and they shouldn't have to pay for your thoughtless and often inconsiderate behaviour.