MechaTarrasque
Hero
Every class (except maybe the fighter and no one can agree on the ranger) has both an idea of how you get power and why others don't. That poor goblin cannon fodder the PC's just killed: He wasn't a wizard because he didn't study to be a wizard. Ditto why he wasn't a monk. He wasn't a sorcerer because no cosmic event happened to him or one of his relatives. He swore an oath, and no one cared, so he wasn't a paladin. Etc.
But he had a mind, and that's all you need to be a psion right? That is all the story we are allowed before it gets "too icky" or whatever was complained about the mystic's origin. Form follows function or in this case, class follows story.
I heavily favor the "you are turning into a dragon/angel/elemental/etc." approach myself. But there are people who favor "you are just naturally good with magic" and I think it might have been better from a design perspective to split the two things apart. I figure the "you are turning" one might have been better as a half caster (arguably in 5e, looking at the capstone, you could argue paladins are just taking a long time to turn into something else).
Of course, I would argue that once you take out the "dragon/angel/elemental/etc.", the rationale for it to be a charisma caster pretty much vanishes. If you look at fiction, characters who are "just good" at magic tend to have a feel for the flow of magic, which seems much more wisdom-based character.
I doubt 5e will change the sorcerer in any big way. 6e (if it ever comes) will probably start with them trying to push the "turn into a dragon/angel/elemental/etc" idea again (like in the 5e playtest), because there are only so many ways to "just naturally good at magic" and a lot of things you can turn into.
But he had a mind, and that's all you need to be a psion right? That is all the story we are allowed before it gets "too icky" or whatever was complained about the mystic's origin. Form follows function or in this case, class follows story.
While I agree with the points you made, I feel like it's less of a problem of comparing the sorcerer with the psionicist, and more of an indication of the problems with the sorcerer class design.
As noted, the sorcerer feels like it should be able to slot in a psionicist origin quite neatly, as long as you don't actually look at the mechanics of the sorcerer class. And it's one of the reasons that it always feels like I'm banging my head against the wall when trying to create a sorcerer character — the mechanics always feel entirely disconnected from the 'fluff' of the class. I would happily strip out all metamagic, if I could just get a sorcerer class that felt like what the sorcerer class looks like it's supposed to be.
Personally, I don't see sorcerers as about magic, per se, but rather about innate and intrinsic power. The fact that they're using magic is simply because that's the only tool that has been available til now. Swapping that out for psionics should be a trivial issue. The problem is in metamagic, which is a hardcoded binding to magic in a way that fails spectacularly to work with any of the other sorcerer thematic concepts.
As for the issue of how to implement psionics? I 100% agree with the current approach of implementing it as subclass features and feats. "Psionics" is a tool, like "magic". It's not a "character concept", at least not within the scope of a fantasy setting. (It might be, in a cyberpunk or sci-fi setting, but that setting would also ditch the wizard, so there would be a conceptual hole to fill.)
I heavily favor the "you are turning into a dragon/angel/elemental/etc." approach myself. But there are people who favor "you are just naturally good with magic" and I think it might have been better from a design perspective to split the two things apart. I figure the "you are turning" one might have been better as a half caster (arguably in 5e, looking at the capstone, you could argue paladins are just taking a long time to turn into something else).
Of course, I would argue that once you take out the "dragon/angel/elemental/etc.", the rationale for it to be a charisma caster pretty much vanishes. If you look at fiction, characters who are "just good" at magic tend to have a feel for the flow of magic, which seems much more wisdom-based character.
I doubt 5e will change the sorcerer in any big way. 6e (if it ever comes) will probably start with them trying to push the "turn into a dragon/angel/elemental/etc" idea again (like in the 5e playtest), because there are only so many ways to "just naturally good at magic" and a lot of things you can turn into.