What you've kept doing longest. Write how the start differs from now.
What have you done the longest? How was it at first?
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.
Skip it and start at the second. The opening writes itself once the rest exists.
Delete every line anyone could have written. What is left is yours.
Pick one. A single idea taken all the way beats ten touched lightly.
A short landing is what stays.
Don't staple two ideas together with 'and'.
Instead of 'I was sad', write what your body did.