I'll be the dissenting voice here. DS3 does not know how to use a computer and is not really given access. DD7 was not given much access till about age 6, and even now we limit screentime quite a lot. I just think they have a lot to learn in the nonscreen world at this age, and I don't feel they're missing out on much they couldn't get another way. I have zero concerns that my kids will not be computer-literate in this day and age. It's all coming soon enough.