"Charity and personal force are the only investments worth anything." - Walt Whitman
Charity has been around as long as humans, if not longer, and is a survival trait.
And almost as long as Raquel Welch
Humans, despite the number of times you have heard "sheeple", are predatory pack animals. Infirm, injured and elderly members of the pack are looked after and fed, as we seem to have some scruples against simply killing and eating them.
This had two benefits in the past:
Guys? I could sure use that cripple right about now.
There are charities for just about every possible state of being *cough* disadvantaged, allowing you to pick and support your favorite disability - physical, mental or furry.
Give the charity money, stupid.
Everywhere. Charities are the only truly global phenomenon.
The problem with a random collector in the street asking for your spare change is that you really don't know if you can spare it just yet. Hence many people wait until they are dead to donate.