Children, mostly.
Children are protected by laws against providing to children. Using that as an excuse to ban things for adults is immoral and counterproductive - kids report that they can get marijuana (illegal for adults) more easily than beer or cigarettes (legal for adults).
Also mentally handicapped, dependent elderly,
So ALL adults should be subjected to the limits appropriate for the mentally handicapped and dependent elderly? Better ban alcohol, then - and guns, knives, power tools, and cars.
and in some cases those of us just trying to go about our business in public. Also those of perfectly sound faculties who have a right not to be presented with sexually graphic material in public, where it can not be avoided unless we walk about with our eyes firmly shut.
No libertarian I know of says that the right to do ABC implies the right to do it in public. But banning sexually graphic material for even private viewing goes too far.
No, you are not understanding my basis.
Children are badly affected, even terminally affected, by using adults. Children need care by competent adults. Not high adults, not brain damaged adults, not addicted adults.
Mentally handicapped and dependent elderly are similarly dependent upon those of us who are fit and intelligent to take care of them. As a society, we must do this. We can’t do it when we are on drugs.
Libertarians I know advocate public sex if desired, public nudity, and blatant sexual content on public billboards, ads, etc. If you don’t, more power to you.