Serious Gaming Goof

Right, so here's an issue or three.
1) Does gaming need to be serious to be enjoyable. I'm not talking about the casual gaming can of worms, in all senses of the words, but the big ugly brown and grey words gritty and realism. Why can't the ridiculous and odd be just as good. Well I think they can.
B) no... 2) Can a main character have personality, please? Main characters are almost always cardboard cutouts of people with rubber bands on them so that the player can feel like they're a person. I remember deep characters with real personality, not extinct in today's market, just exceedingly rare. Still, the gravel-voiced, brooding antihero is so old. It's like space marines, good, sure, but way WAY overplayed. Something new and realistic would be nice. Or even unrealistic if at least it's real.
3) or C) or those little iv) If you have a main character who's not aggressively macho and gravelly and a plot that is somewhat irrational does the game have to be for children, old ladies, and casual gamers?

Well, all that to say I love random game ideas. If you don't know what I refer to then look up the work of Tim Schafer.