Every product ships with a set of decisions already made on your behalf. They are presented as neutral. They never are.
Friction is a policy
A default is a prediction about what most people will do, and then a machine for making that prediction true. Change the toggle and you change behaviour at a scale no advertising budget can reach.
- Opt-out systems produce participation rates four to five times higher than opt-in ones.
- The design of the choice screen routinely matters more than the choices on it.
- Almost nobody visits a settings page twice.
Who gets to decide
The interesting question is not whether defaults influence us — that is settled — but who is accountable for them. Right now the answer is usually a product manager optimising a quarterly metric.
That is a governance problem wearing a UI costume.