this not a conservative or liberal issue, it is that small minority of prohibitionists that want to ban everything, ban nudity, ban t-back bathing suits, ban topless beaches, ban alcohol, ban guns, ban bad words, ban cultural insensitivity.
these people know what is best for you, such as setting arbitrary speed limits, making you wear seat belts and helmets. they also want warning labels on everything, "this coffee is hot", "this knife is sharp", "falling off this ladder can cause injury or death".