The term digital mobile technologies could theoretically incorporate any device that incorporates a microprocessor and is small and light enough to be moved, from simple calculators to full-featured laptop computers. Here, it is taken to refer to Internet-enabled devices specifically designed to enable the use of connected services and applications without compromising portability, including smartphones, tablet computers, and wearable technology. Devices in these categories have become ubiquitous tools in the past decade, with over three-quarters of adults in the Global North and about half in the Global South now owning a mobile device. Teens and young adults have been on the forefront of this trend; their use of mobile devices outpaces that of older adults by a significant margin. For younger children, the picture is ...