As I consider myself a Libertarian, I give my view.
I feel governments should exist only to protect individuals from other individuals and groups, and groups from other individuals or groups.
They should NOT meddle in protecting people from themselves. They should NOT enforce morality at any time it does not involve the protection function mentioned above.
An example is the seatbelt/helmet laws. They are primarily an attempt by busybodies to force people to protect themselves. The argument for those laws generally is: All those people who choose to go unprotected raise the costs of insurance and medical treatment for the rest of us. (sounds like protecting one group from another, sorta) But that is defeated by the idea we could just add a few more questions to their applications. (we DO have smoker and non-smoker rates, why not seatbelt/helmet user rates and non-user rates?) The free market system could take care of it without legislation. The MOST the government should do here is educate people on their options, and the various results of em.
Next, the laws against theft and robbery are good and a useful function of governments. They protect individuals from others. (actually, they dont protect. They offer some deterrent , true, but mainly offer redress after the fact)
The various laws against sodomy, incest, prostitution, etc. ANY act involving two or more CONSENTING adults should be beyond the reach of any government. However, any such act involving force or coersion is to be addressed by governments.
And so on.
75% of all players in IC have hemorroids,
the other 25% are perfect assholes.