FWIW, all quality policy decisions are made upon the basis of a cost benefit analysis. Fairness, and neutrality are non issues in this regard. Take for example the current gun laws.
I am allowed to possess a fully automatic weapon within the confines of my private property. I am not however allowed to possess tomahawk missiles and their ground based launching stations. Why, because the cost of allowing such possession outweighs the benefit, even though both of these weapons can be used to kill multiple people.