Perhaps he should focus on making products that convince his children to switch from Google/Apple products instead of banning them outright. They might be a good barometer.
This reminds me of the Broadway show producer who let his 10-year old kid watch new productions to gauge whether he should stage them or not. The idea was that the average audience has the same level of intellect as a 10-year old kid, and when the kid liked something, the general audience would too.
Related, but not the same, is the monkey which throws darts at a poster on the wall to decide which stock to buy. Who needs financial analysts?
