410
Teens, with mixed feelings about their own phones, say their parents need to log off
(www.nbcnews.com)
This is a most excellent place for technology news and articles.
Here is the survey methodology.
Pew is pretty legit, tends to use best practices, and typically publishes their methods.
https://www.pewresearch.org/internet/2024/03/11/methodology-teens-and-parents-survey/