If you heard complains about people not giving up the seats in MRT , buses for pregnant lady and kids and elderly.  My stories are all about good Singaporeans and foreigners too.
I lived my pregnant journey for #1 and #2 a little privilege, as my hubby will do his best to fetch me to work before heading out for his work/appt. On those days , I had to take MRT and buses, I stood a couple of times.
When I was pregnant with Royce, there was a teenager asking me if I would like to sit, his friend gave his seat up from the other corner of the bench, and it was not even the reserved seat. While I was walking over , a man sat down, thinking the teenager was dropping off. He told the man if I could sit down because I was pregnant. The man saw me and stood up immediately. I am proud of our youngsters, if you keep thinking our youngsters are rebellious and self-centered. I think you can banish that thought now.
There was so many a time, people has given up their seat for me. Especially, when I was pregnant with Adele, a young pair of working adult also asked the person in the reserved seat to give up for me. If you think the strong and young who did not give up their seat, should shamed and disgraced, you could hold on to your thoughts. I think it take someone to ask nicely. Sometimes, in my tired and moody days , I boldly requested for him/her to give up the seat in my nicest manner. They do give up willingly.
A foreigner , perhaps a Bangladesh worker gave up his seat upon my request and smiled politely when I thank him.
An auntie who looked tired after a day's work asked a boy to give up his seat. However, a Chinese worker in the reserved with slightly greyed hair mistaken, thought he should be giving up and walk away instead.
The lasting impression was a young couple who asked me to sit down , he gave up his seat and his girlfriend moved over , we chatted a bit on nutrition. :)

The list goes on and on, the Singaporeans that I once knew and thought poorly of, grew up and in a more gracious manner. I knew of Singaporeans whom went abroad and think why Singaporeans could not be more courteous , just because we don't say 'Hi' to each other. My argument is because we are Asians , and our roots taught us to be more reserved. However, because of chances to go abroad and getting more exposed.
I see the reserved Singaporeans opening up , giving up seats without a second thought to my dad whom was carrying Adele.
That National day , I could not be more proud to be a Singaporean.

To those Singaporeans whom have given up their seats ! Thank you Papa and Mama Koh