Going back to my car from a supermarket shop, having left DS 17 in the car because he doesn't like being crowded.
But he wasn't in the car, so I had a look around. He was outside the other doors with a woman who was in tears and holding onto a flailing and screeching child and a full trolley. So I went over to find out what he'd done.
Turns out he was helping, he'd said that he'd take her trolley to her car and unload it for her if she could manage her son. When she burst into tears and said that he was OK but autistic and overloaded, DS had apparently said
'I'm an Aspie, I know what a meltdown feels like, so let me help.'
So she did, and DS packed her stuff in the boot beautifully whilst I waited in the car.
So he saw a need and responded appropriately, independently.
He's doing that more and more nowadays. Hurrah!