There's really not much to rpgs to provide a tutorial to (especially since most recent releases are mindnumbingly easy), really their chief aspect has always been storytelling (want a 15min lecture on how to read at the beginning of a game?
Games on the whole don't really feature tutorials that much anymore, and if they do its for unique additions (battle systems and the like). Kids just pick things up easily and adults were around for the introduction of 'modern gaming'. Basically games are such a typical aspect of modern life that most people are experienced enough in most genres not to need a tutorial. Heck, even controls kinda give it away- "R Button is shoot. Guess I fire at just about anything that comes onscreen."
I mean, just to cite an example of how tutorials are absolutely redundant for this genre, ever play Kingdom Hearts?
In case you haven't I'll paraphrase its tutorial for you; "This is how you walk. Try walking for a bit"- Sora is FIFTEEN for gawds sake.
It goes into the stuff like HP and MP, but lets face it, anyone can make the connection that when you take a hit and a bar goes down you're losing health. They should also be able to understand zero life means just that, death. If they can't they kinda deserve game over.