You have that right but it is you who has to exercise that right.
Remember that having them listen to you is about Chinuch and not convenience. A noticeable difference between the two is that when it is about Chinuch you are ready to jump up and approach the child, whereas if it is about convenience that would be a contradiction to the request.
A child realizes when the parent is asking from laziness or even tiredness. It is easy to take that for granted and ignore it. Then you ask where is the drink, he shrugs it off and you give up. Next time gets even harder.
So one answer to the question is, don’t be lazy. Don’t let it pass. Be ready to jump up and get it done or help, prod, encourage or demand what needs to get done.