1. Horses and cows could not mate within sight of public roads (this remained on the books until 1950)
2. Until the mid-1970s, you could not buy margarine without a doctor’s prescription.
3. Nabokov’s Lolita was banned.
4. School milk was free, but you had to drink it.
Those are from James Belich’s insightful Paradise Reforged: A History of the New Zealanders from the 1880s to the Year 2000. Today, of course, New Zealand is one of the least heavily regulated OECD countries.