Even if they have a computer at home, that doesn't mean they're practicing the relevant skills. Touch typing, word processing, researching a topic online, etc. are things that need deliberate practice. Based on my own experience, using a computer at home 99% of the time meant playing video games.

The following article suggests that in the United States, about 59% of lower income households have a laptop or desktop computer, compared to 92% of upper income households.

https://www.pewresearch.org/short-reads/2021/06/22/digital-d...

Yes. Kids can learn a lot of they do use computers to do things like research things.