I just didn't know that there are that many of you who had bad experience of people not giving their seats up for pregnant women.
I was in such a case as well with MTR and I seriously think the people in HK sucks big time in terms of politeness and courtesy, especially kids with uniforms since they just sit there and giggle up like stupid idiot. But still they won't give their seats to you. I once thought of asking them for their school names and sent a letter to their school.
My own experience with giving up the seats are women and elderly ladies who know how hard it is to bear the kids. Other than that, no one else will do anything.
I have similar experience with a lady wanting to get off at the next station and I was standing in her way. So I was hoping that the train would stop first before I moved for her. But she gave me this horrible sound and I told her to stop doing that and she was staring at me before she left the MTR. But I had a good look at her and she really looked ugly and sad on her face. She was not a happy person to begin with. At the end, I forgave her since she didn't have the heart to be happy for people anyway. It showed in her ugly face.