Oops, I'm doing it again! By saying "It's just not a default behavior" I implicitly denied the very thing I'm trying to clarify: Robosats' model *is* custodial by default. It's just that they try to custody your funds *as briefly as they can* while still offering a decent UX. So if you're using robosats, you're definitely using a custodian, no two ways about it. It's just that if you use it the *intended* way, they only custody your funds for a few hours. Sometimes less.