I think an equivalent thing would be to look at adoption of V-chips and how few parents turned the feature on. This version of parental control was a failure> I

I think an equivalent thing would be to look at adoption of V-chips and how few parents turned the feature on. This version of parental control was a failure> I don't expect other versions to do a better job. https://en.wikipedia.org/wiki/V-chip https://en.wikipedia.org/wiki/V-chip