"He gives me the impression he's very lucky he got a friendly fairy, when he needed an emergency lift. Can't get specific the right way. I wanted to know if we could do 'they can go uninhabited places plus whitelisted ones'. He said only if that was 'the best we could do' and it'd help if there was more than one place on the whitelist, and I assume people on Oerth are accustomed to meeting violent criminals with magic powers every time they go out for a coffee, so I said at least Ganymede and Oerth, and he said that didn't help and we'd still have to make them safe enough around mortals. But we can't make them that safe! Bindings can only prohibit action, not compel it. If you have to let them go wherever they please, and talk to people, then there's nothing stopping one from going for a fly and then dropping on somebody at terminal velocity or while they're standing over a canyon. Nothing stopping them from saying 'oh, hey, cutie, by the way there's a flaw in my binding that'll let me maim you real bad, but I won't do it if you fuck me'. I can't stop them from doing that. He wants them to go anywhere in the solar system where the government doesn't have its shit together enough to say 'by the way, no criminals please', he's putting that on all those people who, may I remind you, don't in fact have their shit together that well! Might impair them in other contexts! But suggest that they could just hang out in Oerth where you're used to this and he has to go take a walk."