People are imperfect. Screening for “worthy” voters wouldn’t work, no I’m not sure whether literacy is the standard. And even if screening did work, I wouldn’t start with irresponsible voters, I’d start by screening for irresponsible people who think they’re ready for parenthood. There’s no test for that, and deadbeat parents do more damage than voters.
I see no reason why screening wouldn't work, we screen for competence/responsibility, all day, everyday. I agree on the parenting question, but that's another fight.
who is going to set the test ?
A body of independent, critical and informed pundits. A non-partisan set of questions related to local, and national govt,' should not be that difficult to author.
That is exactly what the presidential debate commission is supposed to be.