" A British State of Education report found that four-fifths of teachers are worried about children not being prepared for starting primary school (which in the UK happens at age five) due to poor social skills and delayed speech, which many of the teachers attribute to parents’ excessive use of smartphones and tablets. “There is limited parent/child interaction,” one teacher writes, according to the Guardian. “Four-year-olds know how to swipe a phone but haven’t a clue about conversations.” According to the survey, as many as a third of the students who are enrolled in primary school are not ready for the classroom. "

― Linda Åkeson McGurk , There's No Such Thing as Bad Weather: A Scandinavian Mom's Secrets for Raising Healthy, Resilient, and Confident Kids (from Friluftsliv to Hygge)