Do you complete your chores promptly and thoroughly? Do you do it without asking? Do you follow simple rules likes your curfew?
If your answer to any of these questions is "No." you've already given your parents plenty of reason not to trust you - if you can't handle simple responsibilities, why should they trust you with more?
Trust is like money - it has to be earned. If you haven't done squat to work to earn it, it's not yours to have.