"One can only own a gun in Australia if one has a licence for it. One can only sell alcohol in Australia if one has a licence to do so. One can only drive a motor vehicle in Australia if one has the appropriate licence. One can only run a radio or TV station in Australia if one has acquired a licence to do so. All these restrictions on our liberty to do what we want when we want, but where are the people marching on the streets?

Of course there will be those who try to get around their suspension by asking a licensed drinker to buy grog for them, just as Aborigines used to ask whites to buy liquor for them when they were banned from hotels, but anyone who acceded to this request would be endangering their own licence, as would the hotelier who sold to an unlicensed drinker.

Many people would protest, at first, at the suggestion that they could not be trusted to drink responsibly, but when it was pointed out that the same could be said of car drivers, hoteliers or gun owners they would see the sense of it. As to the additional paperwork, we have computers to do all that now.
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As to your red herring, how many car drivers do you know who never drive on "public" roads?"