This is all interesting to hear. In australia classes are generally mixed but when you get to high school it may be split depending on what you are doing/what people want to do (generally slipt as in 2 options for PE, the girls tend to favor one, the boys the other, thus its split like that).

But other niggly little things like offering your seat to others (not just women but the eldery, pregnant or those with young children) seems lacking. When my friend offered to help a teacher at school with a rather large pile of books she was a little surprised, as boys here simply dont do that at all.