I can see two license classes: an easy one with limited privileges so people can get their feet wet, see if they like it before they invest time & effort for a "full-blown" license (having only the "full blown" license might scare off some people, which would be counter-productive). I think it might be Canada (and someone please correct me if it's different country I'm trying to think of) where the introductory license lets the licensee use 50MHz and up, and once they get experience and decide if they like it, they can get the second license that let's them use everything else. Sounds like an interesting approach...
I might be okay with that, but again, why limit HF? That I don't understand. We have always treated HF as some sort of holy grail, and just want to keep newbies off of it, but I'm not really sure why. It seems like it's just for the sake of keeping people off, honestly.