Ofcom (the UK media and communications watchdog) have published (at end of January 2019) the Children and parents: media use and attitudes report 2018. As usual, it is based on robust research: 1,430 in-home interviews with parents of 5-15s and children aged 8-15 were conducted, along with 630 interviews with parents of children aged 3-4: undertaken in April-June 2018. It includes parents views about their children's use of media and devices.
Via Elizabeth E Charles