Generic research: more statistics

I wanted to find more up to date statistics, so I googled how many times a day people look at their phone, and looked for articles written this year. I found this website, which states that "On average, the typical mobile phone user accesses content on their phone as many as 150 times a day".
I also wanted to find out how many young children/students owned a mobile phone, so I found this report by Ofcom that detailed media consumption of 3-15 year olds. I found these character profiles most interesting:

Around 40% of 8-11 year olds have their own smartphone, and 12-15 year olds spend almost 21 hours a week online. This document also stated that more younger children are going online compared to 2016, for example almost half of the 3-4 year old population are online. I am going to include these statistics in my documentary.