A survey published in 2020 by Common Sense Media found that 50 percent of teenagers in the Los Angeles area feel dependent on their smartphones.
Utafiti uliochapishwa mwaka 2020 na Common Sense Media ulibaini kuwa  asilimia 50 ya vijana katika jimbo la Los Angeles walisema wasingeweza kukaa bila kutumia simu janja zao .