It's not so much Patreon as some sort of outside discussion, notification and possibly discovery platform with YouTube reduced to serving media instead of discovery. That outside platform would likely need to be membership based or paid, probably both, because that "paid" bit may provide a lot of cover against children getting access - at least on the basis of T&C that say something like "as part of this membership you agree to not allow access by any persons under 13 and agree to cover fines and legal expenses we may incur as a result of you violating these terms or as a result of collection attempts."
That would be a combination of "get us in trouble and you're in it too" and "as you can see Your Honor, we've made strong attempts to enforce keeping children out of the community."
any centralized platform that gains significant traction will inevitably fuck w/ some of its users for their own ends. i think as a creator either owning the platform yourself (impractical for almost every1) or something decentralized would be ideal. that way you don't give anyone a veto over your destiny.
to replace youtube, it'd have to be both decentralized video delivery, discovery, social as well as decentralized monetization -- which i think could be patreon style or mayyyybe some sort of ad delivery.
not sure what legal ramfications would be exactly, but i certainly hope we aren't in a place were otherwise-valid enterprises would be banned unless you could (impossibly) prove kids weren't using it.
(also there have historically been lots of people making $ off providing targeted-to-kids content (toy unboxing, slime videos, tasting candy, &c), and it's not clear to me that's a bad thing...?)
That would be a combination of "get us in trouble and you're in it too" and "as you can see Your Honor, we've made strong attempts to enforce keeping children out of the community."