default parent
also called: primary parent, point parent, the one things default to
The default parent is the partner the household defaults to — the first phone call from school, the keeper of the calendar, the one whose head holds the family week.
The school nurse calls. Your phone rings, not your partner's. The teacher emails. It hits your inbox first. The dentist needs to reschedule. They have one number on file and it's yours. You didn't apply for this job. You didn't even sign up. You are, however, doing it.
There's a word for the role. It's the default parent — the one the household, the school, the dentist, the camp coordinator, and the playdate group-text quietly default to. You can be the default parent in a dual-career marriage, a same-sex partnership, a single-parent household, a blended family, a co-parented week-on-week-off setup. The role isn't tied to gender. It's tied to whose head holds the week.
The thing you're feeling has a name, and so does the role. Sociologist Allison Daminger's 2019 work on cognitive labor describes the asymmetry plainly: one partner is anticipating and monitoring while the other is executing assigned tasks, and the gap between those two jobs is wider than either of you realized. Weeks and Ruppanner's 2025 study of 3,000 US parents put a number on it — the default parent carries roughly 71% of the mental load, and 79% of the daily core tasks that can't be skipped.
You are not the only one. You are not making it up. You are not bad at delegating. You are running an operation, and someone needed to. It's worry work. It's invisible labor. It's, mostly, you.