Transport Seating Giving Up Your Seat On Public Transport?

Giving up your seat on public transport? - transport seating

She just had a discussion with women in the office. They complained that he had to take the train, because none of the men did not want to give up his seat. (She is capable body)

I told him that I would not leave my place for a woman if she were ill, pregnant women, etc., as I have the impression that women were equal to men. He disagreed and said it was "only polite to do so."

What do you think? Which groups of people with their seats and stand for?