Don't know where you were looking then - people used to look out of the windows all the time, for all sorts of reasons. Not in tunnels, obviously, and always advisable to keep a good look out fr approaching hardware or bridges. The young lady on the Bristol train was terribly unlucky - the rail...
........ and most new trains don't have any opening windows anyway. You don't even need to open the window to open the doors these days, you just press a button when the light comes on.