Libertarianism isn’t a monolithic ideology, and opinions vary widely among libertarians. Furthermore, one who identifies as libertarian doesn’t inherently reject all utilitarian or communitarian values. Some may argue against seatbelt laws and drivers’ licenses on the basis of personal freedom and responsibility, while others might see the value in certain regulations that protect public safety. What unites libertarians is a belief in limiting government intervention to essential functions, but defining those ‘essential functions’ can differ greatly among individuals within the libertarian community. Libertarians often share common ground with leftists on social values, differing significantly from mainstream Republican politicians.