You voted for someone to represent you. That person then hires a team of people to assist them in making decisions about complicated things, such as the education system, the transportation system, sewage system, finances for all of those plus a hundred other things that no one person on the planet can know at once.

Then that person makes a decision in they believe to be in your best interest.

If you don’t agree with that person’s decisions then you can cast a vote for somebody else to replace them.