I think Discord is trapped in an ugly place:
1 - Piles of parents too stupid or lazy to, well, parent the children they made;
2 - A very reasonable societal expectation that it shouldn't be easy for young kids to access, or even be exposed, to the worst dregs of the internet;
3 - Very different use cases (gaming, kids stuff, free/affordable slack for communities) all on the same platform;
4 - A pile of morons in legislatures who insist there's a magic highly private way to do all this, but (see Australia) refuse to lay out the actual method. It's a government-wide game of underwear gnomes.
How reasonable is this expectation? All you do by intituting these draconian 'wont someone please think of the children' ID laws is make it marginally more difficult to access mainstream services where there's not much crazy bad stuff anyway. The rest of the internet is the wild west, and good luck controlling that.
The whole thing is security theater designed to conceal the fact that child security is not the objective, it's the justification.
That’s not a reasonable societal expectation. That should be an expectation of the parents to follow through on.