...That guarantees you the right to drive at any speed you want?

Sorry, laws are important, as are taxes. And while you may not use roads, the rest of us do. I don't have children, but I pay taxes for schools. I'm okay with it because education is important. While you may be able to afford health care, many cannot. You reap the benefit of healthy citizens as well. Healthy people, and people out of debt, promotes a better economy.