Why are we forced to pay for Anti-lock Brake systems, Vehicle Stability Control systems, and Tire Pressure Monitoring systems on new vehicles? It's because of the 2% rule. 2% of the people are complete idiots or morons where they don't know how to drive a vehicle correctly for the driving conditions, or don't have the common sense to check their tire pressures as normal maintenance. So in an effort to protect this 2% of the population, the government demanded vehicle makers install these systems. So now we've protected this 2% of the population but at everyone elses expense.