The world needs “childish” thinking

“We should abolish this age-discriminatory word when it comes to criticising [adult] behaviour associated with irresponsibility and irrational thinking.”
The above was said by Adora Svitak, a 12-year-old blogger and advocate on literacy rights, on the connotations of the word “childish” during a TED talk. She noted that the word is often attributed to unwise actions taken by adults - not children. At the same time, she believes that the world needs "childish" thinking (i.e. bold ideas, wild creativity and especially optimism). Adora mentioned children deserve more respect and credit, starting with grown-ups' willingness to learn from children as much as to teach them.
 
https://www.ted.com/talks/adora_svitak_what_adults_can_learn_from_kids?language=en