Once you get outside the SV and NYC bubbles, the vast majority of kids do not have their own laptops in the US. Phones, obviously are somewhat more common, but as even you note that's mainly with regard to teenagers - the average 10 year old in middle America does not have their own phone.

Most of these kids have their own tablets though:

> By 2 years old, 4 in 10 children have their own tablet (40%), and by 4 years old, more than half of children (58%) do.

Tablet ownership rises to 68% at age 8.

https://www.commonsensemedia.org/sites/default/files/researc...