Does paying for something in advance change how people use it?
Money spent in the past can control behavior in the future.
The gym membership is already paid.\n\nSuddenly motivation appears.\n\nThe hidden mechanism is sunk commitment.\n\nHumans dislike wasting resources.\n\nMoney creates psychological ownership.\n\nOwnership creates responsibility.\n\nPeople think payments buy services.\n\nVery often, they buy motivation too.
