Are there certain things a person should not be able to buy? Sure, weapons grade plutonium, for instance. The line that gets drawn is a slippery slope fraught with peril.
One of the channels on the TV played Demolition man, and it had a bit more social commentary then I had given credit. Given the current administrations perchance for regulation and neologisms.
Napolitano preferred the euphemism Man-Made disaster in place of Terrorist Attack. Iin the film: homicide is referred to as a "non-sanctioned life termination" and as "Murder Death Kill" or "MDK". The loosening of decency standards depicted is more of a conservative bent then liberal. A violation of the Verbal Morality Statute, is punishable by police reprimand or a fine. In liberal fashion though, the fine is automatically deducted from a citizen's finances.
Then the government control of media in that the favorite songs of the time are old 20th-century commercial jingles (kid oriented ones) and many words have gained redundant, childish repetitions: to be happy is to experience "joy-joy" feelings. Which bodes of the nanny state.
Then comes the crux. It is explained that anything "not good for you" is deemed "bad" and therefore illegal, including alcohol, caffeine, contact sports, non-educational toys, meat, spicy and unhealthy food, table salt and tobacco (sound familier?). Firearms can only be seen in museums (Gun Control!). Physical contact was recognized as causing the spread of disease and is now seen as unusual (This is enforced in Elementary school). Even high-fives have been replaced with energetic waving. Procreation is carried out in a laboratory (Heavily regulated no doubt); abortion is illegal, but so is unlicensed pregnancy. I can see Nancy Pelosi salivating at the prospect!
I ponder why it is those elected to 'represent us' sometimes feel the need to "protect us from ourselves?"