Are our kids given the gadgets before they are mature enough to wisely use the technology?

This book is a must-have in each house where children have access to technology or digital media and smartphones or any other device to connect with technology.

If you know a child or a teenager who-
-is endlessly glued to the screen of a smartphone or any other digital media device
-promises to restrict the use of digital media, but simply forgets it
-is not performing any physical, social or academic activities as almost the whole time goes in virtual gaming on smart screen or gaming
consoles.
-is either over-dependent on technology or overuses the digital media,
-is oblivious of what people in his/ her immediate surrounding are doing or asking
-is almost on the verge of being a digital addict
-is in serious need of counselling for the above-mentioned issues
-then please recommend...