I mean it's fact that most classes don't actually start functioning the way they're intended until level 3 when the subclass finally, arduously comes online.
Really? I have always found the subclass to be superfluous and wouldn't even miss them if they were gone from the game.
To my mind, the functions would revolve around:
- Barbarian - Level 1 rage, their primary function.
- Bard - Level 1 inspiration, their "thing", or spellcasting, also a huge part of their function.
- Cleric - gets subclass at level 1 anyway..., but otherwise spellcasting--subclass is a 50/50 thing IMO.
- Druid - no even sure what their function is? wildshaping? spellcasting? so levels 1 or 2?
- Fighter - Level 1 fighting style or level 2 action surge? They can fight from Level 1 and that is their function...
- Monk - Level 1 martial arts, or probably level 2, Ki, their thing for functioning.
- Paladin - Level 2 smites, their primary function IME, but even level 1 lay on hands is pretty iconic.
- Ranger - RAW a lost cause so not touching this one...
- Rogue - Level 1 expertise and sneak attack-- enough said.
- Sorcerer - subclass has nothing to do with their functioning really, it is font of magic and metamagic at levels 2 and 3 really.
- Warlock - subclass at level 1 has little to do with their "function", which is really all about eldritch invocations IME at level 2.
- Wizard - spellcasting at level 1 and arcane recovery, so functioning out of the gate.
Level 1's are Barbarian, Bards, Clerics (subclass sometimes, sometimes not a big part of function), Fighter, Rogue, Wizard. That's half the classes at level 1 and really only the cleric has any function-based thing from subclass.
Level 2's are Druids (subclass
meh except for Moon), Monk, Paladin, Warlock. That's another 4.
Level 3's are really just Sorcerers when Metamagic (nothing to do with subclass) comes online.
Ranger's are probably the
ONLY class whose subclass comes at 3rd level that really need it to help define how they should actually function. But that is really more because Favored Enemy is about as lame as you can get.
So, with the vast majority of classes actually functioning as intended before level 3 and not even relying on subclasses, I don't see how its a "fact" really.