And to add to that, there is this presumption that phones are purely for entertainment aka "time wasting". They are also very useful devices for business, work,

And to add to that, there is this presumption that phones are purely for entertainment aka "time wasting". They are also very useful devices for business, work, education, etc. Let those individuals decide what's good/bad - who are we to lecture? tl;dr: There are no solutions, just trade-offs