I have begrudgingly gotten our kids apple watches for exactly reasons outlined
I am in some latent way, however, concerned with the idea of them wearing a cellular radio directly on their skin all day - I have for the most part avoided any of the EMF/4G/5G handwaving but would love an informed opinion from HN if there is any reason for concern / need to moderate or otherwise?
A quick google shows a range of $0.03/cpm to $13.00/cpm depending on category.
https://stashvine.com/most-profitable-youtube-niches/