Habitual problems

Yesterday I took MRT ( Train )home. I saw " reminders" inside the train as follow:
" It's not cool to bully. It's not cool to litter."
" Got fined. Gt CWO ( Corrective work order to clean up some designated places ) too. Now I'm a litterbug fool." " Do the right thing. Let's bin it."
Wow, you see! this is the good reminders from the enforcement body National Environment Agency.
My friends, with so many reminders, why enforcement officers still can manage to catch so many people littering?
I think this is the habitual problem.
If we all have right mindset, we should not litter. So, we wouldn't be fined ( few hundred dollars).
Remember few hundred dollars can be very big amount for poor families here.
So, we should do all the good things in life.
Do you agree?