"There are illiterate adults out there. How do you get them setting up firewalls, secure networks and filtering?"
This is off the top of my head, so haven't thought too deeply. But surely some clever company could create a filtering system with options to install different levels of filter? So it'd be as simple as choosing an age appropriate one. It wouldn't be a perfect solution obviously, even if the different packages were customisable, if people weren't confident customising them. But they'd still be better than nothing or a blanket filter.
I think what I'd most like to see is a freeware program (crowdsourced especially) that had these different levels of use (age 5-7, 10-12, etc). Maybe the lower levels set as a whitelist of approved kid friendly sites, then opened up as a blacklist for the older age groups. With the ability to send reports of sites that are wrongly blocked or not blocked to a wiki style set up which could then be moderated and used to update the filtering programme. I'm pretty certain something like this probably already exists - DS is 16mo though so I've not really looked too much into them.
They key would be if the govt would point people to it, maybe even offering a download via their website. Even better if the ISP's and mobile networks could promote it and help by having their tech bods cooperating with it, sharing data, skills and testing it and making sure it worked with their devices. Maybe even giving the option of having it installed when people have internet access set up?
That way there is the option of using it, people know it can be trusted, and it covers all different family set ups with relative ease. So one user can view adult content, while another can be shielded, and another can have partial access.