Loss of civic mindedness

I witnessed this terrible incident at the bus stop late at night in selegie road.

While waiting for my midnight bus home, 3 youngsters walking past me. 2 young ladies, probably in their mid teens together with a young man. One of the ladies was holding a beverage can in her hands. They sat on the higher bench, while i was sitting on the lower bench, another bench separating our distance.

I was really really sleepy and tired, suddenly a screeching sound from the can came from that group of youngsters. Then, it followed by another crushing sound. The drink can in that girl's hand was 'disfigured'. The metal thingy was exposed. I turned my head back, thought it might just be the 'itchy and boring hands' doing the act.

Then i heard another sound coming from that side.After 'disfiguring' the can, she conveniently threw it behind her. Not into the trash, mind you. But just aimlessly throwing.

An old auntie who was standing very close to her, reprimanded her for being so inconsiderate. She lectured her in mandarin, reminding her of the danger that it might cause to other people.
She went on and on, telling her to pick it up. And the worse thing was, she turned away from her, blindly ignoring her pleas.

The old auntie had to pick up the can herself and threw it into the bin herself.

And those 3 youngsters did nothing but kept giggling away.

I don't know what other passerbys feel or have thought about what they had just witnessed but i felt totally disgusted.

I do believe they do receive some moral education lessons in school and i also believe that the teachers are definitely doing a good job. but i could not comprehend why would such terrible attitude be present in them? isn't there no sense of shame to let an old auntie teach them this lesson of being civic mindedness in this society?

Is the society losing it? Can we still depend on the young to mould a better world to live in?