Maxperson
Morkus from Orkus
It's not meaningless.Which is entirely meaningless as a statement. Can I claim that if I use houserules in character creation that those houserules exist in your world because they exist somewhere? No, of course not.
So we have, in any particular world, a bare handful of Fighters (class), and a whole load of fighters (english word). And just like the real world, where not every EMT, bricklayer, coder, bookseller, garbage man, middle manager, actuary, nor HR rep has the same progression, neither do "fighters" in world.
First, house rules are unique/semi-unique rules at specific tables. The rules I'm referring to are the default rules for the game. The default rules apply to every table unless specifically changed by the DM. House rules specifically do not unless adopted by the DM. That's a very important difference.
Second, regardless of how many fighters the class there are in a specific world, and depending on the DM it could be anywhere from 1 to millions(PCs and NPCs with class levels), all PC fighters use the same progression. Just like all NPC Bandit Captains use the same progression. The problem of PCs and NPCs using the same progression still applies to both.

