One kindness from someone you didn't know. It doesn't have to be big.
When and how did a stranger help you?
Everyone gets the same subject. What differs is the follow-up: one question for children, two for teens, three for adults. Only the children's wording is simplified.
Cut every “well, but”. The sentence stands up straight without them.
Cut at the conjunction. Where “and” or “so” appears, a period belongs.
Write as if no one will read it. You can choose what to show after you finish.
Open with a question and the reader keeps going to find the answer.
One line against your own view makes the whole piece stronger.
'Last Tuesday' always beats 'sometimes'.