That's right. Love and Logic says don't tell your kids what to do, just tell them what you're going to do.
To a college student who is taking academics lightly.
Mom and I reimburse tuition for classes that are completed with a grade of C or better.
To a child who's always late.
The car leaves at 7:30 am.
To a student whose homework is always late:
I grade assignments that are handed in on time.
To a child whose yelling at you.
I listen to voices that are calm.
To a child who drove and came home late.
(Wait until the next time they want to use the care and then lead with empathy and say:) I allow people to use my car who I can trust to keep their word about being home on time.
Of course, all of the above statements assume that you will not lecture or threaten. You will allow your child to think about what you said without over taliking to them. You will indeed be willing to follow through even if they throw a fit.