I hate littering, it's one of my biggest pet peeves. I like to pick up litter when I go for walks. We have awesome metro parks here and people treat them like a dump

Because common spaces are reflective of the lowest common denominator, not the top or the average. A thousand people can walk by a space but if 1 of them tosses a cigarette butt on the ground, everyone else who passes by sees it and nobody wants to pick up after that person.

I feel like the culture in the united states has something to do with it, other countries I have been to take much better care of their public spaces, especially restrooms, pecause they respect that others need to enjoy it. Now of course some countries are worse, but most westernized modern countries have higher standars of what is acceptable in public.

We do, and I take this seriously by not littering and addressing anyone near if they litter. Sometimes I even pick up other people's litter, but obviously my circle of influence is limited. What do you propose?

Yes, we do. But, too damned many people are thoughtless boors.

People don't respect their own bodies good luck on getting them to respect anything else ....there's a new fad of painting rocks and leaving them places I pointed out that this is littering and was then attacked by loads of people on the thread

After my heart, this post is. ~Yoda

I believe we all should consider others and take care of public places. I truly do not understand how people can be so inconsiderate. This situation arises daily, including at my office, where we have a shared kitchen and obviously restrooms.

When I see such ickiness, I want to make a sign that says something like - "Do You Do This At Home?"

In short, people have no respect for the environment or their surroundings. I have flicked a tossed cigarette butt back into a car, twice, while stopped at a light on my bike.

I often want to put signs up in urinals that read, "Scoot up some! It's not as long as you think it is..."

Many humans have no regard for what they do, or how they treat anything.
Too many believe they're entitled to use public spaces in any manner they choose.
They think someone else will come behind them and clean up their mess.
They have no regard for anyone but themselves.

I think it's cultural. You don't see this in Germany, Holland, Luxembourg, Switzerland, or Belgium. At least you didn't back in the 90s. But you did in Africa and South America....