Some people just can't make it and others, such as those in Cumbria for example may have weather problems.
Others, like myself, are struggling health wise and going out in this cold and icy weather is not conducive to our health. However, my seat will not be empty as I have given my ticket to a young fan who is looking forward to the game.
There are many reasons why folk can't get to the match and calling people is not going to help. Live and let live. If you can make it well and good.
I think I've put my shifts in when I was well enough. Travelling both home and away, in England and abroad in all kinds of weather!
:-)