I will say for you, @BardicWizard, that seven or eight years after we'd all graduated, a dozen of my high school peers, most of whom hadn't kept in close touch, came back together and spent a month supporting a friend when her mom died. We met her at the airport, bunked her in our houses, drove her everywhere, made sure she was never alone, arranged everything we could for her.
When she left island again, we mostly went back to our separate lives, but we all know we'll do it again the next time someone needs us.